Vulnerability-Lookup

CVE-2026-10056 (GCVE-0-2026-10056)

Vulnerability from cvelistv5 – Published: 2026-05-29 08:04 – Updated: 2026-05-29 14:59

Title

CORS misconfiguration in Nx Witness VMS allows session token exfiltration via cross-origin request

Summary

CORS misconfiguration in the REST API of Network Optix Nx Witness VMS before version 6.1.2, when running in the default Standard security mode, on Linux and Windows allows an unauthenticated remote attacker to steal the session token of an authenticated user and perform Administrator Account Takeover via a malicious cross-origin web page visited by the victim. The High security mode is not affected.Workaround: For existing installations running in Standard security mode, set Access-Control-Allow-Credentials to false via the REST API: PATCH /rest/v2/system/settings with body {"supportedOrigins": "null"}. Alternatively, select High security level during initial setup. Solution: Update to Nx Witness VMS version 6.1.2 or later, in which Access-Control-Allow-Credentials is set to false in the default Standard security configuration.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-29 14:58 UTC

CWE

CWE-942 - Permissive Cross-Origin Resource Sharing Policy

Assigner

NX mitre root

References

1 reference

URL	Tags
https://support.networkoptix.com/hc/en-us/article…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
Network Optix	Nx Witness VMS	Affected: 0 , < 6.1.2 (semver)

Date Public

2026-05-29 00:00

Credits

Matan Sandori and 2Bsecure

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-10056

Vulnerability from fkie_nvd - Published: 2026-05-29 09:16 - Updated: 2026-07-21 12:10

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	96d4e157-0bf0-48b3-8efd-382c68caf4e0	https://support.networkoptix.com/hc/en-us/articles/39254208939159-How-to-Enable-CORS-Validation

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "platforms": [
            "Linux",
            "Windows",
            "MacOS"
          ],
          "product": "Nx Witness VMS",
          "vendor": "Network Optix",
          "versions": [
            {
              "lessThan": "6.1.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
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        }
      ],
      "source": "96d4e157-0bf0-48b3-8efd-382c68caf4e0"
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  "cveTags": [],
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    {
      "lang": "en",
      "value": "CORS misconfiguration in the REST API of Network Optix Nx Witness VMS before version 6.1.2, when running in the default Standard security mode, on Linux and Windows allows an unauthenticated remote attacker to steal the session token of an authenticated user and perform Administrator Account Takeover via a malicious cross-origin web page visited by the victim. The High security mode is not affected.Workaround:\n\nFor existing installations running in Standard security mode, set Access-Control-Allow-Credentials to false via the REST API: PATCH /rest/v2/system/settings with body {\"supportedOrigins\": \"null\"}. Alternatively, select High security level during initial setup.\n\nSolution:\n\nUpdate to Nx Witness VMS version 6.1.2 or later, in which Access-Control-Allow-Credentials is set to false in the default Standard security configuration."
    },
    {
      "lang": "es",
      "value": "Mala configuraci\u00f3n de CORS en la API REST de Network Optix Nx Witness VMS anterior a la versi\u00f3n 6.1.2, cuando se ejecuta en el modo de seguridad \u0027Est\u00e1ndar\u0027 predeterminado, en Linux y Windows permite a un atacante remoto no autenticado robar el token de sesi\u00f3n de un usuario autenticado y realizar una \u0027Toma de Control de Cuenta de Administrador\u0027 a trav\u00e9s de una p\u00e1gina web maliciosa de origen cruzado visitada por la v\u00edctima. El modo de seguridad \u0027Alto\u0027 no se ve afectado.\n\nSoluci\u00f3n alternativa:\n\nPara instalaciones existentes que se ejecutan en el modo de seguridad \u0027Est\u00e1ndar\u0027, establezca \u0027Access-Control-Allow-Credentials\u0027 en \u0027false\u0027 a trav\u00e9s de la API REST: PATCH /rest/v2/system/settings con el cuerpo {\"supportedOrigins\": \"null\"}. Alternativamente, seleccione el nivel de seguridad \u0027Alto\u0027 durante la configuraci\u00f3n inicial.\n\nSoluci\u00f3n:\n\nActualice a la versi\u00f3n 6.1.2 o posterior de Nx Witness VMS, en la que \u0027Access-Control-Allow-Credentials\u0027 se establece en \u0027false\u0027 en la configuraci\u00f3n de seguridad \u0027Est\u00e1ndar\u0027 predeterminada."
    }
  ],
  "id": "CVE-2026-10056",
  "lastModified": "2026-07-21T12:10:00.090",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
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        "type": "Secondary"
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GHSA-R863-5PGM-C8G4

Vulnerability from github – Published: 2026-05-29 09:31 – Updated: 2026-05-29 09:31

Details

For existing installations running in Standard security mode, set Access-Control-Allow-Credentials to false via the REST API: PATCH /rest/v2/system/settings with body {"supportedOrigins": "null"}. Alternatively, select High security level during initial setup.

Solution:

Update to Nx Witness VMS version 6.1.2 or later, in which Access-Control-Allow-Credentials is set to false in the default Standard security configuration.

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

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  "affected": [],
  "aliases": [
    "CVE-2026-10056"
  ],
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    "cwe_ids": [
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    "github_reviewed": false,
    "github_reviewed_at": null,
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  },
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  "id": "GHSA-r863-5pgm-c8g4",
  "modified": "2026-05-29T09:31:05Z",
  "published": "2026-05-29T09:31:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10056"
    },
    {
      "type": "WEB",
      "url": "https://support.networkoptix.com/hc/en-us/articles/39254208939159-How-to-Enable-CORS-Validation"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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-2026-10056 (GCVE-0-2026-10056)

FKIE_CVE-2026-10056

GHSA-R863-5PGM-C8G4

Tags

Sightings

Nomenclature

Related by attack behaviour