A vulnerability exists in the NodeRestriction admission controller in Kubernetes clusters where node users can delete their corresponding node object by patching themselves with an OwnerReference to a cluster-scoped resource. If the OwnerReference resource does not exist or is subsequently deleted, the given node object will be deleted via garbage collection.
https://github.com/advisories/GHSA-4x4m-3c2p-qppc
https://groups.google.com/g/kubernetes-security-announce/c/znSNY7XCztE
Published: 2025-08-27
Updated: 2026-04-15
Named Vulnerability: GO-2025-3915Named Vulnerability: GHSA-4x4m-3c2p-qppc
Base Score: 8
Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:P
Severity: High
Base Score: 6.7
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L
Severity: Medium
EPSS: 0.00574