CVE-2025-5187— Nodes can delete themselves by adding an OwnerReference
Quick assessment
Affected
Kubernetes Kubernetes
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Kubernetes（K8s）是Kubernetes开源的一个开源系统，用于自动部署、扩展和管理容器化应用程序。 Kubernetes存在安全漏洞，该漏洞源于NodeRestriction准入控制器处理不当，可能导致节点对象删除。
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I. Basic Information for CVE-2025-5187
Vulnerability Information
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Vulnerability Title
Nodes can delete themselves by adding an OwnerReference
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Kubernetes 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kubernetes（K8s）是Kubernetes开源的一个开源系统，用于自动部署、扩展和管理容器化应用程序。 Kubernetes存在安全漏洞，该漏洞源于NodeRestriction准入控制器处理不当，可能导致节点对象删除。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Kubernetes | Kubernetes | v1.31.0 ~ v1.31.11 | - |
|
II. Public POCs for CVE-2025-5187
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2025-5187 (1)
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