Search
Find a vulnerability
Search criteria
9 vulnerabilities found for multicluster engine for Kubernetes 2.10 by Red Hat
CVE-2026-73267 (GCVE-0-2026-73267)
Vulnerability from cvelistv5 – Published: 2026-08-21 02:43 – Updated: 2026-09-29 19:41
VLAI
EPSS
VEX
Title
Clusterclaims-controller: managedcluster deletion keyed solely on clusterclaim.spec.namespace with no local ownership check
Summary
A flaw was found in the clusterclaims-controller component of multicluster engine (MCE). A tenant with standard permissions to create and delete ClusterClaim resources can exploit this by manipulating the `spec.namespace` field. This allows the tenant to specify and delete any ManagedCluster, including the hub's local-cluster or other tenants' clusters, due to a missing ownership check. This vulnerability can lead to a denial of service by enabling unauthorized deletion of ManagedClusters.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 15:34 UTC
CWE
- CWE-602 - Client-Side Enforcement of Server-Side Security
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:59556 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59557 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59558 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59559 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59579 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59593 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-73267 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2514218 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | multicluster engine for Kubernetes 2.10 |
Unaffected:
1787196014 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.10::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.11 |
Unaffected:
1787239442 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.11::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.17 |
Unaffected:
1786577950 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.17::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.6 |
Unaffected:
1787259112 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.6::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.8 |
Unaffected:
1787259059 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.8::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.9 |
Unaffected:
1787195995 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.9::el9 |
Date Public
2026-08-11 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-73267",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-25T15:34:54.106824Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-25T15:35:07.735Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.10::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/clusterclaims-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787196014",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.11::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/clusterclaims-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.11",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787239442",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.17::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/clusterclaims-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1786577950",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/clusterclaims-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787259112",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.8::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/clusterclaims-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787259059",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.9::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/clusterclaims-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787195995",
"versionType": "rpm"
}
]
}
],
"datePublic": "2026-08-11T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the clusterclaims-controller component of multicluster engine (MCE). A tenant with standard permissions to create and delete ClusterClaim resources can exploit this by manipulating the `spec.namespace` field. This allows the tenant to specify and delete any ManagedCluster, including the hub\u0027s local-cluster or other tenants\u0027 clusters, due to a missing ownership check. This vulnerability can lead to a denial of service by enabling unauthorized deletion of ManagedClusters."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-602",
"description": "Client-Side Enforcement of Server-Side Security",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T19:41:34.213Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:59556",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59556"
},
{
"name": "RHSA-2026:59557",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59557"
},
{
"name": "RHSA-2026:59558",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59558"
},
{
"name": "RHSA-2026:59559",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59559"
},
{
"name": "RHSA-2026:59579",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59579"
},
{
"name": "RHSA-2026:59593",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59593"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-73267"
},
{
"name": "RHBZ#2514218",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514218"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-08-10T00:00:00.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-08-11T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Clusterclaims-controller: managedcluster deletion keyed solely on clusterclaim.spec.namespace with no local ownership check",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-602: Client-Side Enforcement of Server-Side Security"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-73267",
"datePublished": "2026-08-21T02:43:36.017Z",
"dateReserved": "2026-08-11T17:22:38.645Z",
"dateUpdated": "2026-09-29T19:41:34.213Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-75569 (GCVE-0-2026-75569)
Vulnerability from cvelistv5 – Published: 2026-08-19 20:47 – Updated: 2026-09-29 19:41
VLAI
EPSS
VEX
Title
Mce-operator-bundle: all github actions pinned by mutable tag, not commit sha
Summary
A flaw was found in mce-operator-bundle. The build process fetches and executes scripts from a remote repository without performing integrity checks, such as commit pinning or signature verification. This allows a malicious actor with write access to the remote repository to inject and execute arbitrary code during the build. The consequence is a compromised build process, potentially leading to the distribution of malicious software.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 14:00 UTC
CWE
- CWE-1357 - Reliance on Insufficiently Trustworthy Component
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:59634 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59636 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59637 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59638 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59642 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59643 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-75569 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2519849 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | multicluster engine for Kubernetes 2.10 |
Unaffected:
1787263075 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.10::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.11 |
Unaffected:
1787321579 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.11::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.17 |
Unaffected:
1787083639 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.17::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.6 |
Unaffected:
1787317415 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.6::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.8 |
Unaffected:
1787318262 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.8::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.9 |
Unaffected:
1787287150 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.9::el9 |
Date Public
2026-08-19 19:37
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-75569",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-20T14:00:29.833872Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T14:00:43.725Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.10::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/mce-operator-bundle",
"product": "multicluster engine for Kubernetes 2.10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787263075",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.11::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/mce-operator-bundle",
"product": "multicluster engine for Kubernetes 2.11",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787321579",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.17::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/mce-operator-bundle",
"product": "multicluster engine for Kubernetes 2.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787083639",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/mce-operator-bundle",
"product": "multicluster engine for Kubernetes 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787317415",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.8::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/mce-operator-bundle",
"product": "multicluster engine for Kubernetes 2.8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787318262",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.9::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/mce-operator-bundle",
"product": "multicluster engine for Kubernetes 2.9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787287150",
"versionType": "rpm"
}
]
}
],
"datePublic": "2026-08-19T19:37:55.122Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in mce-operator-bundle. The build process fetches and executes scripts from a remote repository without performing integrity checks, such as commit pinning or signature verification. This allows a malicious actor with write access to the remote repository to inject and execute arbitrary code during the build. The consequence is a compromised build process, potentially leading to the distribution of malicious software."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1357",
"description": "Reliance on Insufficiently Trustworthy Component",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T19:41:48.297Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:59634",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59634"
},
{
"name": "RHSA-2026:59636",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59636"
},
{
"name": "RHSA-2026:59637",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59637"
},
{
"name": "RHSA-2026:59638",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59638"
},
{
"name": "RHSA-2026:59642",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59642"
},
{
"name": "RHSA-2026:59643",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59643"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-75569"
},
{
"name": "RHBZ#2519849",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2519849"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-07-27T21:15:58.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-08-19T19:37:55.122Z",
"value": "Made public."
}
],
"title": "Mce-operator-bundle: all github actions pinned by mutable tag, not commit sha",
"workarounds": [
{
"lang": "en",
"value": "The vulnerability resides within the build process of `mce-operator-bundle`, specifically concerning the fetching of build logic from a mutable source without integrity verification. As this issue pertains to the build-time integrity of the software, there are no direct runtime configuration or operational controls available for users to mitigate this vulnerability in deployed Red Hat products."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-1357: Reliance on Insufficiently Trustworthy Component"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-75569",
"datePublished": "2026-08-19T20:47:45.877Z",
"dateReserved": "2026-08-19T18:59:18.098Z",
"dateUpdated": "2026-09-29T19:41:48.297Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-66794 (GCVE-0-2026-66794)
Vulnerability from cvelistv5 – Published: 2026-08-19 17:30 – Updated: 2026-09-29 19:41
VLAI
EPSS
VEX
Title
Cluster-proxy-addon: cluster-proxy-addon: unauthenticated ssrf to arbitrary managed-cluster services via public route
Summary
A flaw was found in the `cluster-proxy-addon` component of Multicluster Engine for Kubernetes. This vulnerability allows an unauthenticated attacker, who can access the user-facing route, to bypass authentication and authorization checks. By manipulating URL path segments, the attacker can proxy requests to arbitrary services across any managed cluster. This enables unauthorized access to internal services that would otherwise be protected, potentially leading to information disclosure or further compromise of the cluster environment.
Severity
9.3 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 19:33 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:59556 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59557 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59558 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59559 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59579 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59593 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-66794 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2507539 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | multicluster engine for Kubernetes 2.10 |
Unaffected:
1787173361 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.10::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.11 |
Unaffected:
1787276784 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.11::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.17 |
Unaffected:
1786983349 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.17::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.6 |
Unaffected:
1787275318 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.6::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.8 |
Unaffected:
1787275519 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.8::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.9 |
Unaffected:
1787274923 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.9::el9 |
Date Public
2026-08-19 14:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-66794",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-21T19:33:05.335178Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-21T19:33:17.053Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.10::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-addon-rhel9",
"product": "multicluster engine for Kubernetes 2.10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787173361",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.11::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-rhel9",
"product": "multicluster engine for Kubernetes 2.11",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787276784",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.17::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-rhel9",
"product": "multicluster engine for Kubernetes 2.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1786983349",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-addon-rhel9",
"product": "multicluster engine for Kubernetes 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787275318",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.8::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-addon-rhel9",
"product": "multicluster engine for Kubernetes 2.8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787275519",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.9::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-addon-rhel9",
"product": "multicluster engine for Kubernetes 2.9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787274923",
"versionType": "rpm"
}
]
}
],
"datePublic": "2026-08-19T14:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the `cluster-proxy-addon` component of Multicluster Engine for Kubernetes. This vulnerability allows an unauthenticated attacker, who can access the user-facing route, to bypass authentication and authorization checks. By manipulating URL path segments, the attacker can proxy requests to arbitrary services across any managed cluster. This enables unauthorized access to internal services that would otherwise be protected, potentially leading to information disclosure or further compromise of the cluster environment."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-918",
"description": "Server-Side Request Forgery (SSRF)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T19:41:11.722Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:59556",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59556"
},
{
"name": "RHSA-2026:59557",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59557"
},
{
"name": "RHSA-2026:59558",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59558"
},
{
"name": "RHSA-2026:59559",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59559"
},
{
"name": "RHSA-2026:59579",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59579"
},
{
"name": "RHSA-2026:59593",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59593"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-66794"
},
{
"name": "RHBZ#2507539",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507539"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-07-27T00:00:00.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-08-19T14:00:00.000Z",
"value": "Made public."
}
],
"title": "Cluster-proxy-addon: cluster-proxy-addon: unauthenticated ssrf to arbitrary managed-cluster services via public route",
"workarounds": [
{
"lang": "en",
"value": "To mitigate this issue, restrict network access to the user-facing Route of the `cluster-proxy-addon` to trusted networks only. Implement firewall rules to limit inbound connections to the Route\u0027s exposed port, ensuring only authorized sources can reach it. This reduces the attack surface by preventing unauthenticated external access to the vulnerable proxy."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-918: Server-Side Request Forgery (SSRF)"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-66794",
"datePublished": "2026-08-19T17:30:07.984Z",
"dateReserved": "2026-07-27T17:51:24.886Z",
"dateUpdated": "2026-09-29T19:41:11.722Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-66795 (GCVE-0-2026-66795)
Vulnerability from cvelistv5 – Published: 2026-08-17 20:45 – Updated: 2026-09-29 19:41
VLAI
EPSS
VEX
Title
Managedcluster-import-controller: csr auto-approver does not validate certificate subject or signername (spoke→hub cluster-admin)
Summary
A flaw was found in the managedcluster-import-controller. The Certificate Signing Request (CSR) auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a spoke cluster to submit a malicious CSR. Successful exploitation can lead to privilege escalation, enabling the attacker to obtain administrative credentials on the hub cluster.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 15:15 UTC
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:59556 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59557 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59558 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59559 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59579 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59593 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-66795 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2507540 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | multicluster engine for Kubernetes 2.10 |
Unaffected:
1787078272 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.10::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.11 |
Unaffected:
1787078330 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.11::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.17 |
Unaffected:
1786577915 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.17::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.6 |
Unaffected:
1787260779 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.6::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.8 |
Unaffected:
1787259044 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.8::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.9 |
Unaffected:
1787078307 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.9::el9 |
Date Public
2026-08-17 20:29
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-66795",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-18T15:15:25.705433Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-18T15:15:40.084Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.10::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/managedcluster-import-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787078272",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.11::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/managedcluster-import-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.11",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787078330",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.17::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/managedcluster-import-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1786577915",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/managedcluster-import-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787260779",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.8::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/managedcluster-import-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787259044",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.9::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/managedcluster-import-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787078307",
"versionType": "rpm"
}
]
}
],
"datePublic": "2026-08-17T20:29:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the managedcluster-import-controller. The Certificate Signing Request (CSR) auto-approval logic improperly validates incoming CSRs, specifically by not inspecting the signer name or decoding the PEM-encoded x509 CSR. This vulnerability allows a privileged service account on a spoke cluster to submit a malicious CSR. Successful exploitation can lead to privilege escalation, enabling the attacker to obtain administrative credentials on the hub cluster."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.9,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-295",
"description": "Improper Certificate Validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T19:41:20.174Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:59556",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59556"
},
{
"name": "RHSA-2026:59557",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59557"
},
{
"name": "RHSA-2026:59558",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59558"
},
{
"name": "RHSA-2026:59559",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59559"
},
{
"name": "RHSA-2026:59579",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59579"
},
{
"name": "RHSA-2026:59593",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59593"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-66795"
},
{
"name": "RHBZ#2507540",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507540"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-07-27T00:00:00.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-08-17T20:29:00.000Z",
"value": "Made public."
}
],
"title": "Managedcluster-import-controller: csr auto-approver does not validate certificate subject or signername (spoke\u2192hub cluster-admin)",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-295: Improper Certificate Validation"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-66795",
"datePublished": "2026-08-17T20:45:33.786Z",
"dateReserved": "2026-07-27T17:51:24.886Z",
"dateUpdated": "2026-09-29T19:41:20.174Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-73266 (GCVE-0-2026-73266)
Vulnerability from cvelistv5 – Published: 2026-08-13 16:36 – Updated: 2026-09-29 19:41
VLAI
EPSS
VEX
Title
Clusterclaims-controller: confused deputy: tenant-controlled clusterclaim labels propagated to managedcluster, enabling cross-tenant managedclusterset join
Summary
A flaw was found in the clusterclaims-controller component of Multicluster Engine (MCE). An authenticated tenant can exploit this vulnerability by manipulating ClusterClaim labels. This allows the tenant to force a cluster to join a ManagedClusterSet belonging to another tenant. Such unauthorized access could enable the injection of policies and workloads into other tenants' clusters.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 01:25 UTC
CWE
- CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:59556 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59557 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59558 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59559 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59579 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59593 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-73266 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2514217 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | multicluster engine for Kubernetes 2.10 |
Unaffected:
1787196014 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.10::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.11 |
Unaffected:
1787239442 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.11::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.17 |
Unaffected:
1786577950 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.17::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.6 |
Unaffected:
1787259112 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.6::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.8 |
Unaffected:
1787259059 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.8::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.9 |
Unaffected:
1787195995 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.9::el9 |
Date Public
2026-08-11 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-73266",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-18T01:25:32.223923Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-18T01:25:47.546Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.10::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/clusterclaims-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787196014",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.11::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/clusterclaims-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.11",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787239442",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.17::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/clusterclaims-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1786577950",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/clusterclaims-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787259112",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.8::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/clusterclaims-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787259059",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.9::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/clusterclaims-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787195995",
"versionType": "rpm"
}
]
}
],
"datePublic": "2026-08-11T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the clusterclaims-controller component of Multicluster Engine (MCE). An authenticated tenant can exploit this vulnerability by manipulating ClusterClaim labels. This allows the tenant to force a cluster to join a ManagedClusterSet belonging to another tenant. Such unauthorized access could enable the injection of policies and workloads into other tenants\u0027 clusters."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-441",
"description": "Unintended Proxy or Intermediary (\u0027Confused Deputy\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T19:41:29.817Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:59556",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59556"
},
{
"name": "RHSA-2026:59557",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59557"
},
{
"name": "RHSA-2026:59558",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59558"
},
{
"name": "RHSA-2026:59559",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59559"
},
{
"name": "RHSA-2026:59579",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59579"
},
{
"name": "RHSA-2026:59593",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59593"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-73266"
},
{
"name": "RHBZ#2514217",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514217"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-08-10T00:00:00.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-08-11T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Clusterclaims-controller: confused deputy: tenant-controlled clusterclaim labels propagated to managedcluster, enabling cross-tenant managedclusterset join",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-441: Unintended Proxy or Intermediary (\u0027Confused Deputy\u0027)"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-73266",
"datePublished": "2026-08-13T16:36:45.097Z",
"dateReserved": "2026-08-11T17:22:38.645Z",
"dateUpdated": "2026-09-29T19:41:29.817Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-19130 (GCVE-0-2026-19130)
Vulnerability from cvelistv5 – Published: 2026-08-12 20:46 – Updated: 2026-09-29 19:41
VLAI
EPSS
VEX
Title
Provider-credential-controller: provider-credential-controller: cross-namespace credential propagation via attacker-controlled copiedfrom labels bypasses authorization
Summary
A flaw was found in the provider-credential-controller component of multicluster-engine (MCE). An attacker with specific permissions on the hub cluster, and knowledge of a prior credential value, could exploit an authorization bypass vulnerability. By manipulating `copiedFrom` labels, the attacker could intercept newly rotated provider credentials, leading to unauthorized information disclosure. This allows access to sensitive credentials that should otherwise be protected.
Severity
5.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 22:13 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:59556 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59557 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59558 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59559 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59579 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59593 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-19130 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2512105 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | multicluster engine for Kubernetes 2.10 |
Unaffected:
1787176886 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.10::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.11 |
Unaffected:
1787239595 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.11::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.17 |
Unaffected:
1786664288 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.17::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.6 |
Unaffected:
1787260821 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.6::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.8 |
Unaffected:
1787259099 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.8::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.9 |
Unaffected:
1787176716 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.9::el9 |
Date Public
2026-08-12 18:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-19130",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-14T22:13:54.758866Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-14T22:14:05.851Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.10::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/provider-credential-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787176886",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.11::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/provider-credential-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.11",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787239595",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.17::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/provider-credential-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1786664288",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/provider-credential-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787260821",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.8::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/provider-credential-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787259099",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.9::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/provider-credential-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787176716",
"versionType": "rpm"
}
]
}
],
"datePublic": "2026-08-12T18:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the provider-credential-controller component of multicluster-engine (MCE). An attacker with specific permissions on the hub cluster, and knowledge of a prior credential value, could exploit an authorization bypass vulnerability. By manipulating `copiedFrom` labels, the attacker could intercept newly rotated provider credentials, leading to unauthorized information disclosure. This allows access to sensitive credentials that should otherwise be protected."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-639",
"description": "Authorization Bypass Through User-Controlled Key",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T19:41:06.721Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:59556",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59556"
},
{
"name": "RHSA-2026:59557",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59557"
},
{
"name": "RHSA-2026:59558",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59558"
},
{
"name": "RHSA-2026:59559",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59559"
},
{
"name": "RHSA-2026:59579",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59579"
},
{
"name": "RHSA-2026:59593",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59593"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-19130"
},
{
"name": "RHBZ#2512105",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2512105"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-05-23T00:00:00.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-08-12T18:00:00.000Z",
"value": "Made public."
}
],
"title": "Provider-credential-controller: provider-credential-controller: cross-namespace credential propagation via attacker-controlled copiedfrom labels bypasses authorization",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-639: Authorization Bypass Through User-Controlled Key"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-19130",
"datePublished": "2026-08-12T20:46:21.305Z",
"dateReserved": "2026-08-06T15:55:10.000Z",
"dateUpdated": "2026-09-29T19:41:06.721Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-73268 (GCVE-0-2026-73268)
Vulnerability from cvelistv5 – Published: 2026-08-12 19:05 – Updated: 2026-09-29 19:41
VLAI
EPSS
VEX
Title
Cluster-curator-controller: cluster-curator-controller: spec.install.overridejob allows arbitrary job spec injection
Summary
A flaw was found in the cluster-curator-controller component of multicluster engine (MCE). A tenant with create or update permissions on ClusterCurator resources can inject an arbitrary Job specification. This is possible because the CreateJob() function does not validate user-controlled input when unmarshaling the spec.install.overrideJob raw extension. Successful exploitation allows the injected Job to run with the controller's elevated privileges, leading to arbitrary code execution and privilege escalation, potentially accessing cluster-wide secrets.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 19:45 UTC
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:59556 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59557 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59558 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59559 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59579 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59593 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-73268 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2514219 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | multicluster engine for Kubernetes 2.10 |
Unaffected:
1787201612 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.10::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.11 |
Unaffected:
1787238383 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.11::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.17 |
Unaffected:
1786750700 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.17::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.6 |
Unaffected:
1787264185 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.6::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.8 |
Unaffected:
1787259011 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.8::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.9 |
Unaffected:
1787201646 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.9::el9 |
Date Public
2026-08-11 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-73268",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-12T19:45:32.285133Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-12T19:45:37.611Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.10::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-curator-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787201612",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.11::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-curator-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.11",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787238383",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.17::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-curator-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1786750700",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-curator-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787264185",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.8::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-curator-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787259011",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.9::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-curator-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787201646",
"versionType": "rpm"
}
]
}
],
"datePublic": "2026-08-11T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the cluster-curator-controller component of multicluster engine (MCE). A tenant with create or update permissions on ClusterCurator resources can inject an arbitrary Job specification. This is possible because the CreateJob() function does not validate user-controlled input when unmarshaling the spec.install.overrideJob raw extension. Successful exploitation allows the injected Job to run with the controller\u0027s elevated privileges, leading to arbitrary code execution and privilege escalation, potentially accessing cluster-wide secrets."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.9,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-94",
"description": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T19:41:40.747Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:59556",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59556"
},
{
"name": "RHSA-2026:59557",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59557"
},
{
"name": "RHSA-2026:59558",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59558"
},
{
"name": "RHSA-2026:59559",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59559"
},
{
"name": "RHSA-2026:59579",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59579"
},
{
"name": "RHSA-2026:59593",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59593"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-73268"
},
{
"name": "RHBZ#2514219",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514219"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-08-10T00:00:00.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-08-11T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Cluster-curator-controller: cluster-curator-controller: spec.install.overridejob allows arbitrary job spec injection",
"workarounds": [
{
"lang": "en",
"value": "To mitigate this issue, implement strict Role-Based Access Control (RBAC) policies to limit create and update permissions on `clustercurators.cluster.open-cluster-management.io` resources to trusted administrators only. This restricts the ability of less privileged tenants to exploit the vulnerability and escalate privileges within the Kubernetes environment."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-73268",
"datePublished": "2026-08-12T19:05:12.287Z",
"dateReserved": "2026-08-11T17:22:38.645Z",
"dateUpdated": "2026-09-29T19:41:40.747Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-73269 (GCVE-0-2026-73269)
Vulnerability from cvelistv5 – Published: 2026-08-12 19:05 – Updated: 2026-09-29 19:41
VLAI
EPSS
VEX
Title
Cluster-curator-controller: cluster-curator-controller: tenant-controllable trigger creates clusterrolebinding granting cluster-wide secrets access to namespace-local sa
Summary
A flaw was found in the cluster-curator-controller component. A local user, by creating a ClusterCurator resource with a specific naming convention, can trigger the creation of a cluster-scoped ClusterRoleBinding. This allows the user to escalate their privileges from namespace-local access to cluster-wide control. This privilege escalation grants broad permissions, including the ability to access and manipulate secrets, manage cluster actions, and delete hosted clusters or node pools.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 20:47 UTC
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:59556 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59557 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59558 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59559 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59579 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:59593 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-73269 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2514220 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | multicluster engine for Kubernetes 2.10 |
Unaffected:
1787201612 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.10::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.11 |
Unaffected:
1787238383 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.11::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.17 |
Unaffected:
1786750700 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.17::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.6 |
Unaffected:
1787264185 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.6::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.8 |
Unaffected:
1787259011 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.8::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.9 |
Unaffected:
1787201646 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.9::el9 |
Date Public
2026-08-11 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-73269",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-12T20:47:02.826289Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-12T20:55:28.504Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.10::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-curator-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787201612",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.11::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-curator-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.11",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787238383",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.17::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-curator-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1786750700",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-curator-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787264185",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.8::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-curator-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787259011",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.9::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-curator-controller-rhel9",
"product": "multicluster engine for Kubernetes 2.9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1787201646",
"versionType": "rpm"
}
]
}
],
"datePublic": "2026-08-11T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the cluster-curator-controller component. A local user, by creating a ClusterCurator resource with a specific naming convention, can trigger the creation of a cluster-scoped ClusterRoleBinding. This allows the user to escalate their privileges from namespace-local access to cluster-wide control. This privilege escalation grants broad permissions, including the ability to access and manipulate secrets, manage cluster actions, and delete hosted clusters or node pools."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.9,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-269",
"description": "Improper Privilege Management",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T19:41:43.285Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:59556",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59556"
},
{
"name": "RHSA-2026:59557",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59557"
},
{
"name": "RHSA-2026:59558",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59558"
},
{
"name": "RHSA-2026:59559",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59559"
},
{
"name": "RHSA-2026:59579",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59579"
},
{
"name": "RHSA-2026:59593",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:59593"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-73269"
},
{
"name": "RHBZ#2514220",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514220"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-08-10T00:00:00.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-08-11T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Cluster-curator-controller: cluster-curator-controller: tenant-controllable trigger creates clusterrolebinding granting cluster-wide secrets access to namespace-local sa",
"workarounds": [
{
"lang": "en",
"value": "To mitigate this issue, restrict the ability of tenants to create `ClusterCurator` resources. Implement Kubernetes Role-Based Access Control (RBAC) policies to limit `create` permissions for `clustercurators.cluster.open-cluster-management.io` resources to only trusted administrators or service accounts. Alternatively, deploy an admission controller to enforce that `metadata.name` and `metadata.namespace` fields are identical when `ClusterCurator` resources are created, preventing the vulnerable condition."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-269: Improper Privilege Management"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-73269",
"datePublished": "2026-08-12T19:05:05.235Z",
"dateReserved": "2026-08-11T17:22:38.645Z",
"dateUpdated": "2026-09-29T19:41:43.285Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-17107 (GCVE-0-2026-17107)
Vulnerability from cvelistv5 – Published: 2026-07-24 18:56 – Updated: 2026-09-29 18:42
VLAI
EPSS
VEX
Title
Cluster-proxy: impersonation-header injection grants cluster-admin on every managed cluster
Summary
A flaw was found in the cluster-proxy service-proxy component used in Red Hat Advanced Cluster Management for Kubernetes (RHACM) and multicluster-engine (MCE). The service-proxy appends impersonation group headers to proxied requests without first removing caller-supplied values, and the spoke ServiceAccount holds unrestricted impersonation permissions. An authenticated hub principal can inject an Impersonate-Group header to escalate to cluster-admin on every managed cluster.
Severity
8.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 17:20 UTC
CWE
- CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:46885 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:47388 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:47735 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:47949 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:47953 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:47974 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:48284 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-17107 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2506771 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | multicluster engine for Kubernetes 2.10 |
Unaffected:
1784342329 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.10::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.11 |
Unaffected:
1784925025 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.11::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.17 |
Unaffected:
1784926298 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.17::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.6 |
Unaffected:
1783985960 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.6::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.8 |
Unaffected:
1784342329 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.8::el9 |
|
| Red Hat | multicluster engine for Kubernetes 2.9 |
Unaffected:
1783278220 , < *
(rpm)
cpe:/a:redhat:multicluster_engine:2.9::el9 |
Date Public
2026-07-24 18:49
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-17107",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-27T17:20:52.949389Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-27T17:21:07.015Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.10::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-rhel9",
"product": "multicluster engine for Kubernetes 2.10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1784342329",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.10::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-rhel9",
"product": "multicluster engine for Kubernetes 2.10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1784342329",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.11::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-rhel9",
"product": "multicluster engine for Kubernetes 2.11",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1784925025",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.17::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-rhel9",
"product": "multicluster engine for Kubernetes 2.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1784926298",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-rhel9",
"product": "multicluster engine for Kubernetes 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1783985960",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.8::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-rhel9",
"product": "multicluster engine for Kubernetes 2.8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1784342329",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:multicluster_engine:2.9::el9"
],
"defaultStatus": "affected",
"packageName": "multicluster-engine/cluster-proxy-rhel9",
"product": "multicluster engine for Kubernetes 2.9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1783278220",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank Arpit Jain (GitHub: arpitjain099) and Kahiro Okina (Craftsman Software, Inc.) for reporting this issue."
}
],
"datePublic": "2026-07-24T18:49:48.386Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the cluster-proxy service-proxy component used in Red Hat Advanced Cluster Management for Kubernetes (RHACM) and multicluster-engine (MCE). The service-proxy appends impersonation group headers to proxied requests without first removing caller-supplied values, and the spoke ServiceAccount holds unrestricted impersonation permissions. An authenticated hub principal can inject an Impersonate-Group header to escalate to cluster-admin on every managed cluster."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-441",
"description": "Unintended Proxy or Intermediary (\u0027Confused Deputy\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T18:42:15.611Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:46885",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:46885"
},
{
"name": "RHSA-2026:47388",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:47388"
},
{
"name": "RHSA-2026:47735",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:47735"
},
{
"name": "RHSA-2026:47949",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:47949"
},
{
"name": "RHSA-2026:47953",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:47953"
},
{
"name": "RHSA-2026:47974",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:47974"
},
{
"name": "RHSA-2026:48284",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:48284"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-17107"
},
{
"name": "RHBZ#2506771",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506771"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-05-22T00:00:00.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-07-24T18:49:48.386Z",
"value": "Made public."
}
],
"title": "Cluster-proxy: impersonation-header injection grants cluster-admin on every managed cluster",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-441: Unintended Proxy or Intermediary (\u0027Confused Deputy\u0027)"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2026-17107",
"datePublished": "2026-07-24T18:56:05.194Z",
"dateReserved": "2026-07-24T15:28:38.469Z",
"dateUpdated": "2026-09-29T18:42:15.611Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}