CVE-2025-5187
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
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.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2025-5187.html
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2025-5187
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 1.20.5+really1.20.2-1 |
| debian | bullseye | fixed | 1.20.5+really1.20.2-1 |
| debian | forky | fixed | 1.20.5+really1.20.2-1 |
| debian | sid | fixed | 1.20.5+really1.20.2-1 |
| debian | trixie | fixed | 1.20.5+really1.20.2-1 |
| sles | affected | |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | k8s.io/kubernetes | <1.31.12 | 1.31.12 |
| Go | k8s.io/kubernetes | >=1.32.0-alpha.0,<1.32.8 | 1.32.8 |
| Go | k8s.io/kubernetes | >=1.33.0-alpha.0,<1.33.4 | 1.33.4 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-5187
- https://github.com/kubernetes/kubernetes/issues/133471
- https://github.com/kubernetes/kubernetes/commit/a2d98cac56a0c5cb2d8abc4d087fc00846b3bc0f
- https://github.com/kubernetes/kubernetes
- https://groups.google.com/g/kubernetes-security-announce/c/znSNY7XCztE
- https://github.com/advisories/GHSA-4x4m-3c2p-qppc
- https://security-tracker.debian.org/tracker/CVE-2025-5187
- https://www.suse.com/security/cve/CVE-2025-5187.html
Verify integrity in audit chain (admin only). AS-IS.