FKIE_CVE-2026-22806

Vulnerability from fkie_nvd - Published: 2026-01-29 20:16 - Updated: 2026-02-04 16:34
Severity ?
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Summary
vCluster Platform provides a Kubernetes platform for managing virtual clusters, multi-tenancy, and cluster sharing. Prior to versions 4.6.0, 4.5.4, 4.4.2, and 4.3.10, when an access key is created with a limited scope, the scope can be bypassed to access resources outside of it. However, the user still cannot access resources beyond what is accessible to the owner of the access key. Versions 4.6.0, 4.5.4, 4.4.2, and 4.3.10 fix the vulnerability. Some other mitigations are available. Users can limit exposure by reviewing access keys which are scoped and ensuring any users with access to them have appropriate permissions set. Creating automation users with very limited permissions and using access keys for these automation users can be used as a temporary workaround where upgrading is not immediately possible but scoped access keys are needed.
References
security-advisories@github.comhttps://github.com/loft-sh/loft/security/advisories/GHSA-c539-w4ch-7wxq
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "vCluster Platform provides a Kubernetes platform for managing virtual clusters, multi-tenancy, and cluster sharing. Prior to versions 4.6.0, 4.5.4, 4.4.2, and 4.3.10, when an access key is created with a limited scope, the scope can be bypassed to access resources outside of it. However, the user still cannot access resources beyond what is accessible to the owner of the access key. Versions 4.6.0, 4.5.4, 4.4.2, and 4.3.10 fix the vulnerability. Some other mitigations are available. Users can limit exposure by reviewing access keys which are scoped and ensuring any users with access to them have appropriate permissions set. Creating automation users with very limited permissions and using access keys for these automation users can be used as a temporary workaround where upgrading is not immediately possible but scoped access keys are needed."
    },
    {
      "lang": "es",
      "value": "vCluster Platform proporciona una plataforma Kubernetes para la gesti\u00f3n de cl\u00fasteres virtuales, multitenencia y el uso compartido de cl\u00fasteres. Antes de las versiones 4.6.0, 4.5.4, 4.4.2 y 4.3.10, cuando se crea una clave de acceso con un alcance limitado, el alcance puede ser eludido para acceder a recursos fuera de este. Sin embargo, el usuario a\u00fan no puede acceder a recursos m\u00e1s all\u00e1 de lo que es accesible para el propietario de la clave de acceso. Las versiones 4.6.0, 4.5.4, 4.4.2 y 4.3.10 corrigen la vulnerabilidad. Algunas otras mitigaciones est\u00e1n disponibles. Los usuarios pueden limitar la exposici\u00f3n revisando las claves de acceso que tienen un alcance definido y asegur\u00e1ndose de que cualquier usuario con acceso a ellas tenga los permisos apropiados configurados. La creaci\u00f3n de usuarios de automatizaci\u00f3n con permisos muy limitados y el uso de claves de acceso para estos usuarios de automatizaci\u00f3n puede utilizarse como una soluci\u00f3n alternativa temporal donde la actualizaci\u00f3n no es posible de inmediato pero se necesitan claves de acceso con alcance definido."
    }
  ],
  "id": "CVE-2026-22806",
  "lastModified": "2026-02-04T16:34:21.763",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-01-29T20:16:10.277",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/loft-sh/loft/security/advisories/GHSA-c539-w4ch-7wxq"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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