CVE-2025-5187 MEDIUM

CVE-2025-5187: Nodes can delete themselves by adding an OwnerReference

Vendor Kubernetes
Product Kubernetes
Weakness CWE-863 · Incorrect authorization
Published August 27, 2025
Last update February 26, 2026

CVSS base score

6.7/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 27, 2025 CVE published
February 26, 2026 Record updated

Related vulnerabilities

04Related CVE