A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use a newline character to bypass the sanitization of the spec.rules[].http.paths[].path field of 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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ingress-nginx | Kubernetes | * | 1.2.1 (excluding) |