A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use 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.
https://www.ibm.com/support/pages/node/6575101
https://security.netapp.com/advisory/ntap-20220609-0006/
https://groups.google.com/g/kubernetes-security-announce/c/7vQrpDZeBlc