FKIE_CVE-2026-79767

Vulnerability from fkie_nvd - Published: 2026-09-22 20:17 - Updated: 2026-09-23 18:12
Severity
5.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
Summary
Gardener implements the automated management and operation of Kubernetes clusters as a service. Prior to 1.142.6, 1.143.3, 1.144.2, and 1.145.0, the customverbauthorizer admission plugin's mustCheckProjectMembers manage-members check compares changes to User subjects but does not account for Group or ServiceAccount subjects in Project.spec.members. A project administrator who lacks manage-members permission can add arbitrary Group or ServiceAccount subjects, including the system:authenticated Group, and thereby grant broad project access. The resulting access can include Shoots, Secrets, and cloud provider credentials. This issue is fixed in versions 1.142.6, 1.143.3, 1.144.2, and 1.145.0.
References
security-advisories@github.comhttps://github.com/gardener/gardener/commit/63751db97dca6cc5ee5f966d4963415de6ae5545
security-advisories@github.comhttps://github.com/gardener/gardener/pull/15080
security-advisories@github.comhttps://github.com/gardener/gardener/releases/tag/v1.144.2
security-advisories@github.comhttps://github.com/gardener/gardener/security/advisories/GHSA-gfjv-gqf2-c888
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "gardener",
          "vendor": "gardener",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.142.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.143.0, \u003c 1.143.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.144.0, \u003c 1.144.2"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Gardener implements the automated management and operation of Kubernetes clusters as a service. Prior to 1.142.6, 1.143.3, 1.144.2, and 1.145.0, the customverbauthorizer admission plugin\u0027s mustCheckProjectMembers manage-members check compares changes to User subjects but does not account for Group or ServiceAccount subjects in Project.spec.members. A project administrator who lacks manage-members permission can add arbitrary Group or ServiceAccount subjects, including the system:authenticated Group, and thereby grant broad project access. The resulting access can include Shoots, Secrets, and cloud provider credentials. This issue is fixed in versions 1.142.6, 1.143.3, 1.144.2, and 1.145.0."
    }
  ],
  "id": "CVE-2026-79767",
  "lastModified": "2026-09-23T18:12:04.247",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 4.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-79767",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-23T14:10:13.169141Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-22T20:17:08.957",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gardener/gardener/commit/63751db97dca6cc5ee5f966d4963415de6ae5545"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gardener/gardener/pull/15080"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gardener/gardener/releases/tag/v1.144.2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/gardener/gardener/security/advisories/GHSA-gfjv-gqf2-c888"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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