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.)

We are monitoring a series of vulnerabilities in the Ingress NGINX Controller for Kubernetes, dubbed IngressNightmare. Organizations are advised to apply available patches.

The version of Ingres-NGINX controller installed on the remote host is prior to 1.11.5/1.12.1. It is, therefore, affected by multiple vulnerabilities as referenced as Ingress Nightmare.

  - A security issue was discovered in Kubernetes where under certain conditions, an unauthenticated attacker with     access to the pod network can achieve arbitrary code execution in the context of the ingress-nginx controller. This     can lead to disclosure of Secrets accessible to the controller. (Note that in the default installation, the     controller can access all Secrets cluster-wide.) (CVE-2025-1974)

  - A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the     `mirror-target` and `mirror-host` Ingress annotations can be used to inject arbitrary 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.) (CVE-2025-1098)   
  - 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.) (CVE-2025-1097)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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.) (CVE-2025-1097)

ID	Name	Product	Family	Severity
233357	Ingress-NGINX controller < 1.11.5 / 1.12 < 1.12.1 Multiple Vulnerabilities	Nessus	Misc.	critical
421229	SCA: security update for k8s.io/ingress-nginx (GHSA-823x-fv5p-h7hw)	Tenable Cloud Security	SCA Checks	high
421229	SCA: security update for k8s.io/ingress-nginx (GHSA-823x-fv5p-h7hw)	Tenable Self-Hosted Container Security	SCA Checks	high

Detections

Analytics

CVE-2025-1097

high

Tenable Plugins

critical

high

high