NGINX Ingress Controller vulnerabilities

NGINX Ingress Controller has a vulnerability when implementing an externalAuth policy for ingress. NGINX Ingress Controller may mishandle the HTTP response from an OAuth IdP and allow an attacker to acquire unauthenticated access to protected paths before the proper external authentication can happen.

A vulnerability in NGINX Ingress Controller where the configuration generator does not sanitize user-controllable fields from Ingress annotations. An authenticated attacker with permission to create or modify these annotations can inject arbitrary NGINX configuration directives.

An injection vulnerability exists in NGINX Ingress Controller when configured with CRDs or Ingress annotations. An authenticated attacker with write access can inject arbitrary NGINX configuration directives.

A vulnerability in NGINX Ingress Controller allows an authenticated attacker with permissions to create or modify Ingress or TransportServer resources to terminate the controller process. This causes a persistent crash loop until the malformed resource is removed from the cluster.