CVE-2025-4563 LOW

CVE-2025-4563: Nodes can bypass dynamic resource allocation authorization checks

Vendor Kubernetes
Product Kubernetes
Weakness CWE-20 · Input validation
Published June 23, 2025
Last update June 23, 2025

CVSS base score

2.7/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A vulnerability exists in the NodeRestriction admission controller where nodes can bypass dynamic resource allocation authorization checks. When the DynamicResourceAllocation feature gate is enabled, the controller properly validates resource claim statuses during pod status updates but fails to perform equivalent validation during pod creation. This allows a compromised node to create mirror pods that access unauthorized dynamic resources, potentially leading to privilege escalation.

Key dates

02Disclosure timeline

June 23, 2025 CVE published
June 23, 2025 Record updated