GO-2026-6568 Gardener: Authorization Bypass via Group Subject Injection in gardener/gardener

Gardener: Authorization Bypass via Group Subject Injection in gardener/gardener. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positive reports from vulnerability scanners,...

PT-2026-105587

Gardener: Authorization Bypass via Group Subject Injection in gardener/gardener. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positive reports from vulnerability scanners,...

Gardener: Authorization Bypass via Group Subject Injection

Overview The manage-members custom verb authorization check in the Gardener API server's customverbauthorizer admission plugin can be bypassed by adding Group or ServiceAccount subjects to a Project's member list. The check is documented as controlling "human users or groups", but the...

GHSA-GFJV-GQF2-C888 Gardener: Authorization Bypass via Group Subject Injection

Overview The manage-members custom verb authorization check in the Gardener API server's customverbauthorizer admission plugin can be bypassed by adding Group or ServiceAccount subjects to a Project's member list. The check is documented as controlling "human users or groups", but the...

CVE-2026-79767 Gardener: Authorization Bypass via Group Subject Injection

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 Grou...

CVE-2026-79767 Gardener: Authorization Bypass via Group Subject Injection

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 Grou...

CVE-2026-79767

The Gardener platform contains an authorization bypass in the customverbauthorizer admission plugin's mustCheckProjectMembers check. The vulnerability stems from the isHumanUser() function, which incorrectly filters for User -kind subjects while ignoring Group and ServiceAccount subjects. This al...

CVE-2026-79767 Gardener: Authorization Bypass via Group Subject Injection

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 Grou...