A security issue was discovered in ingress-nginx where an actor with permission to create Ingress objects (in the `networking.k8s.io` or `extensions` API group) can bypass annotation validation to inject arbitrary commands and obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.
https://groups.google.com/g/kubernetes-security-announce/c/a1__cKjWkfA
https://github.com/kubernetes/kubernetes/issues/126744
Published: 2024-08-16
Updated: 2024-08-19
Named Vulnerability: Ingress-NGINX Annotation Validation Bypass
Base Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N
Severity: Medium
Base Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.16196