CVE-2026-24514: ingress-nginx Admission Controller denial of service

Published Feb 3, 2026
·
Updated

A security issue was discovered in ingress-nginx where the validating admission controller feature is subject to a denial of service condition. By sending large requests to the validating admission controller, an attacker can cause memory consumption, which may result in the ingress-nginx controller pod being killed or the node running out of memory.

Affected Software

3 affected componentsFixes available
kubernetes/ingress-nginx
go/k8s.io/ingress-nginx>=1.14.0<1.14.3
1.14.3
go/k8s.io/ingress-nginx<1.13.7
1.13.7

Event History

Feb 3, 2026
CVE Published
via MITRE·10:17 PM
Data Sourced
via MITRE·10:17 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·11:16 PM
DescriptionSeverityWeakness
Feb 4, 2026
Advisory Published
via GitHub·12:30 AM
Data Sourced
via GitHub·12:30 AM
DescriptionSeverityWeaknessAffected Software
Feb 27, 58104
Event
via FIRST·11:51 AM
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Frequently Asked Questions

1

What is the severity of CVE-2026-24514?

CVE-2026-24514 is classified as a denial of service vulnerability that can significantly impact the ingress-nginx Admission Controller.

2

How do I fix CVE-2026-24514?

To mitigate CVE-2026-24514, you should limit the size of requests that the validating admission controller processes.

3

What causes CVE-2026-24514?

CVE-2026-24514 is caused by the ingress-nginx validating admission controller being susceptible to memory consumption due to large incoming requests.

4

Which versions of ingress-nginx are affected by CVE-2026-24514?

CVE-2026-24514 affects all versions of ingress-nginx that implement the validating admission controller feature.

5

Can CVE-2026-24514 be exploited remotely?

Yes, CVE-2026-24514 can be exploited remotely by an attacker who sends large requests to trigger the denial of service.

Contact

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