CVE-2025-4563GHSA-HJ2P-8WJ8-PFQ4GO-2025-3774
Nodes can bypass dynamic resource allocation authorization checks
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.32.6, 1.33.2
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Kubernetes Kubernetes
v1.32.0 - v1.32.5, v1.33.0 - v1.33.1
- k8s.io/kubernetesGo
From 1.32.0 · fixed in 1.32.6
- k8s.io/kubernetesGo
From 1.33.0 · fixed in 1.33.2
- k8s.io/kubernetesGo
From 1.32.0 · fixed in 1.32.6; From 1.33.0 · fixed in 1.33.2