CVE-2021-25746: Kubernetes Ingress-Nginx

High severity, CVSS 7.1. EPSS: 1.4% chance of exploitation in the next 30 days.

A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use .metadata.annotations in an Ingress object (in the networking.k8s.io or extensions API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.

Affected products

• Kubernetes Ingress-Nginx: before 1.2.0 (fixed in 1.2.0)

Published 2022-05-06. Last modified 2026-06-17.