CVE-2025-1097

Description

A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the `auth-tls-match-cn` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)

References

https://www.securityweek.com/ingressnightmare-flaws-expose-many-kubernetes-clusters-to-remote-hacking/

https://www.theregister.com/2025/03/25/kubernetes_flaw_rce_risk/

https://www.tenable.com/blog/cve-2025-1974-frequently-asked-questions-about-ingressnightmare-kubernetes

https://www.darkreading.com/application-security/critical-ingressnightmare-vulns-kubernetes-environments

https://thehackernews.com/2025/03/critical-ingress-nginx-controller.html

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-1974

https://github.com/kubernetes/kubernetes/issues/131007

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3