Medium severity · published Aug 27, 2025
CVE-2025-5187
Nodes can delete themselves by adding an OwnerReference
6.7
CVSS
0.6%
EPSS
No
On KEV
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
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KU
Kubernetes · Kubernetes
v1.31.0 through v1.31.11; v1.32.0 through v1.32.7; v1.33.0 through v1.33.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-5187
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-5187
github.com
https://github.com/kubernetes/kubernetes/issues/133471
groups.google.com
https://groups.google.com/g/kubernetes-security-announce/c/znSNY7XCztE
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