CVE-2026-42965 Openshift/router: openshift/router: cloud metadata ssrf via fqdn-typed endpointslice bypasses destination validation

A flaw was found in the OpenShift Router. A user with EndpointSlice write access can exploit this vulnerability by creating a Service backed by an FQDN Fully Qualified Domain Name EndpointSlice that resolves to a cloud metadata endpoint. This allows the router to proxy requests to the cloud...

CVE-2026-42965

CVE-2026-42965 affects the OpenShift Router. The issue arises when a user with EndpointSlice write access creates a Service backed by an FQDN EndpointSlice that resolves to a cloud metadata endpoint, allowing the router to proxy requests to that endpoint and disclose instance credentials and othe...