Vulnerability-Lookup

CVE-2026-14199 (GCVE-0-2026-14199)

Vulnerability from cvelistv5 – Published: 2026-09-02 16:06 – Updated: 2026-09-03 08:07

Title

Session takeover via Auth Proxy cache key collision

Summary

Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-02 00:00 UTC

CWE

Assigner

GRAFANA mitre root

References

1 reference

URL	Tags
https://grafana.com/security/security-advisories/…	vendor-advisory

Impacted products

2 products

Vendor	Product	Version
Grafana	Grafana Enterprise	Affected: 11.0.0 , ≤ 11.6.17 (semver) Affected: 12.0.0 , ≤ 12.2.11 (semver) Affected: 12.3.0 , ≤ 12.3.11 (semver) Affected: 12.4.0 , ≤ 12.4.9 (semver) Affected: 13.0.0 , ≤ 13.0.7 (semver) Affected: 13.1.0 , ≤ 13.1.4 (semver) Affected: 13.2.0 , ≤ 13.2.0 (semver)
Grafana	Grafana OSS	Affected: 11.0.0 , ≤ 11.6.17 (semver) Affected: 12.0.0 , ≤ 12.2.11 (semver) Affected: 12.3.0 , ≤ 12.3.11 (semver) Affected: 12.4.0 , ≤ 12.4.9 (semver) Affected: 13.0.0 , ≤ 13.0.7 (semver) Affected: 13.1.0 , ≤ 13.1.4 (semver) Affected: 13.2.0 , ≤ 13.2.0 (semver)

Date Public

2026-09-02 09:00

Credits

rebelarch (Researcher)

Show details on NVD website

JSON

To clipboard

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bit-grafana-2026-14199

Vulnerability from bitnami_vulndb

Published

2026-09-08 08:14

Modified

2026-09-16 15:48

Summary

Session takeover via Auth Proxy cache key collision

Details

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "grafana",
        "purl": "pkg:bitnami/grafana"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "11.0.0"
            },
            {
              "fixed": "12.4.10"
            },
            {
              "introduced": "13.0.0"
            },
            {
              "fixed": "13.0.8"
            },
            {
              "introduced": "13.1.0"
            },
            {
              "fixed": "13.2.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-14199"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*",
      "cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*",
      "cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*",
      "cpe:2.3:a:grafana:grafana:*:*:*:*:*:go:*:*"
    ],
    "severity": "High"
  },
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  "id": "BIT-grafana-2026-14199",
  "modified": "2026-09-16T15:48:17.670Z",
  "published": "2026-09-08T08:14:51.153Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://grafana.com/security/security-advisories/cve-2026-14199"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14199"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Session takeover via Auth Proxy cache key collision"
}

EUVD-2026-92141

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-03 10:55

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

JSON

To clipboard

{
  "assigner": "ENISA",
  "date_reserved": "2026-10-03T10:55:45.664308+00:00",
  "id": "EUVD-2026-92141"
}

FKIE_CVE-2026-14199

Vulnerability from fkie_nvd - Published: 2026-09-02 16:17 - Updated: 2026-09-15 18:23

Severity

7.1 (High) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Summary

References

	URL	Tags
	security@grafana.com	https://grafana.com/security/security-advisories/cve-2026-14199	Vendor Advisory

Impacted products

Vendor	Product	Version
grafana	grafana	*
grafana	grafana	*
grafana	grafana	*
grafana	grafana	*

JSON

To clipboard

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    {
      "lang": "en",
      "value": "Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user\u0027s, while that user\u0027s cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing)."
    }
  ],
  "id": "CVE-2026-14199",
  "lastModified": "2026-09-15T18:23:02.127",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.5,
        "source": "security@grafana.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-14199",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-02T00:00:00+00:00",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-02T16:17:14.517",
  "references": [
    {
      "source": "security@grafana.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://grafana.com/security/security-advisories/cve-2026-14199"
    }
  ],
  "sourceIdentifier": "security@grafana.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-290"
        },
        {
          "lang": "en",
          "value": "CWE-863"
        },
        {
          "lang": "en",
          "value": "CWE-1023"
        }
      ],
      "source": "security@grafana.com",
      "type": "Secondary"
    }
  ]
}

GHSA-9758-8G25-VW94

Vulnerability from github – Published: 2026-09-02 18:32 – Updated: 2026-09-02 18:32

Details

Severity

7.1 (High)


                  
                    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-14199"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-290"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-02T16:17:14Z",
    "severity": "HIGH"
  },
  "details": "Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user\u0027s, while that user\u0027s cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).",
  "id": "GHSA-9758-8g25-vw94",
  "modified": "2026-09-02T18:32:10Z",
  "published": "2026-09-02T18:32:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14199"
    },
    {
      "type": "WEB",
      "url": "https://grafana.com/security/security-advisories/cve-2026-14199"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ]
}

OPENSUSE-SU-2026:11684-1

Vulnerability from csaf_opensuse - Published: 2026-09-04 00:00 - Updated: 2026-09-17 17:22

Summary

grafana-12.4.10-1.1 on GA media

Severity

Moderate

Scope

9 vulnerabilities in this advisory, including CVE-2026-14199.

CVE-2026-14199

7.1 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Recommended: 4 products

Open the full advisory

RHSA-2026:66008

Vulnerability from csaf_redhat - Published: 2026-09-09 13:42 - Updated: 2026-10-02 02:15

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Important

Scope

11 vulnerabilities in this advisory, including CVE-2026-14199.

CVE-2026-14199

On instances using Auth Proxy header authentication ([auth.proxy]) with identity caching enabled (sync_ttl > 0), two distinct user identities could produce the same cache key. An authenticated low-privileged user able to influence their own forwarded identity attributes could be served a higher-privileged user's cached session and act as that user for the duration of the cache TTL. Default configurations are not affected.

7.1 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Fixed: 3 products

https://access.redhat.com/errata/RHSA-2026:66008

Open the full advisory

RHSA-2026:68926

Vulnerability from csaf_redhat - Published: 2026-09-18 16:38 - Updated: 2026-10-02 17:45

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2026-14199.

CVE-2026-14199

7.1 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Fixed: 3 products

https://access.redhat.com/errata/RHSA-2026:68926

Open the full advisory

WID-SEC-W-2026-3190

Vulnerability from csaf_certbund - Published: 2026-09-03 22:00 - Updated: 2026-09-09 22:00

Summary

Grafana Enterprise: Mehrere Schwachstellen ermöglichen Erlangen von Benutzer- oder Administratorrechten

Severity

Mittel

Scope

2 vulnerabilities in this advisory, including CVE-2026-14199.

CVE-2026-14199

Known affected: 6 products

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-14199 (GCVE-0-2026-14199)

Vulnerability from bitnami_vulndb

Tags

Sightings

Nomenclature

Related by attack behaviour