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CVE-2025-4563

Nodes can bypass dynamic resource allocation authorization checks

2.7 LowFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
High
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
Low

Exploit likelihood

0.83%Up 0.8 points since Jun 24, 2025
90%50%10%1%

What each source reports

CVE List Score used 2.7

Nodes can bypass dynamic resource allocation authorization checks

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.

Record
CVE-2025-4563
CVSS 3.1
2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-20
Updated
2026-11-02
EUVDEUVD-2025-18894 2.7

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.

Record
EUVD-2025-18894
CVSS 3.1
2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-hj2p-8wj8-pfq4 2.7

kubernetes allows nodes to bypass dynamic resource allocation authorization checks

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.

Record
GHSA-hj2p-8wj8-pfq4
CVSS 3.1
2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-863
Updated
2026-11-02
NVD 2.7

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.

Record
CVE-2025-4563
CVSS 3.1
2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-20
Updated
2026-11-02
OSV 2.7

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.

Record
CVE-2025-4563
CVSS 3.1
2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVDEBIAN-CVE-2025-4563 2.7

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.

Record
DEBIAN-CVE-2025-4563
CVSS 3.1
2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
Show 5 moreShow less
OSVGHSA-hj2p-8wj8-pfq4 2.7

kubernetes allows nodes to bypass dynamic resource allocation authorization checks

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.

Record
GHSA-hj2p-8wj8-pfq4
CVSS 3.1
2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-863
Updated
2026-11-02
OSVUBUNTU-CVE-2025-4563 2.7

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.

Record
UBUNTU-CVE-2025-4563
CVSS 3.1
2.7 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVAZL-64304 No score

CVE-2025-4563 affecting package kubernetes for versions less than 1.30.10-9

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.

Record
AZL-64304
Updated
2026-11-05
OSVGO-2025-3774 No score

Kubernetes allows nodes to bypass dynamic resource allocation authorization checks in k8s.io/kubernetes

Kubernetes allows nodes to bypass dynamic resource allocation authorization checks in k8s.io/kubernetes

Record
GO-2025-3774
Updated
2026-11-02
OSVopenSUSE-SU-2025:15405-1 No score

govulncheck-vulndb-0.0.20250730T213748-1.1 on GA media

These are all security issues fixed in the govulncheck-vulndb-0.0.20250730T213748-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:15405-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
k8s.io/kubernetes
Go
1.32.0 to 1.32.5
1.32.6
k8s.io/kubernetes
Go
1.33.0 to 1.33.1
1.33.2
kubernetes
Azure Linux:3
before 1.30.10-9
1.30.10-9
kubernetes
Debian:12
before 1.20.5+really1.20.2-1
1.20.5+really1.20.2-1
kubernetes
Debian:13
before 1.20.5+really1.20.2-1
1.20.5+really1.20.2-1
kubernetes
Debian:14
before 1.20.5+really1.20.2-1
1.20.5+really1.20.2-1
k8s.io/kubernetes
Go
1.32.0 up to 1.32.6
1.32.6
k8s.io/kubernetes
Go
1.33.0 up to 1.33.2
1.33.2
k8s.io/kubernetes
Go
1.32.0 up to 1.32.6, 1.33.0 up to 1.33.2
1.32.61.33.2
govulncheck-vulndb
openSUSE:Tumbleweed
From an advisory covering 56 CVEs
before 0.0.20250730T213748-1.1
0.0.20250730T213748-1.1

History

History
RecordedChangedSources
affected
factsOSV
affected
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-4563 is a low vulnerability (CVSS 2.7) in Kubernetes, published June 23, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.83%, the 57th percentile. Fixed in k8s.io/kubernetes 1.32.6.

References

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