{"id":"CVE-2026-79767","sourceIdentifier":"security-advisories@github.com","published":"2026-09-22T20:17:08.957","lastModified":"2026-09-23T18:12:04.247","vulnStatus":"Awaiting Analysis","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'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."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"gardener","product":"gardener","versions":[{"version":"< 1.142.6","status":"affected"},{"version":">= 1.143.0, < 1.143.3","status":"affected"},{"version":">= 1.144.0, < 1.144.2","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":1.2,"impactScore":4.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-09-23T14:10:13.169141Z","id":"CVE-2026-79767","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-863"}]}],"references":[{"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","source":"security-advisories@github.com"}]}