CVE-2025-5187
Nodes can delete themselves by adding an OwnerReference
6.7CVSSMEDIUM
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.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:HPrivileges RequiredHigh
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:LAvailabilityLow
Weaknesses
Affected Products
Attack Graph
Products CVE Techniques Tactics
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Exploitability
Official Patch Available
MITRE ATT&CK
2 techniques Initial Access
References
https://github.com/kubernetes/kubernetes/issues/133471
github.com
https://groups.google.com/g/kubernetes-security-announce/c/znSNY7XCztE
groups.google.com
https://nvd.nist.gov/vuln/detail/CVE-2025-5187
nvd.nist.gov
and 4 more references View all →
Timeline
Published
Aug 27, 2025
Last Updated
Aug 29, 2025
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