CVE-2026-40109 Flux notification-controller GCR Receiver missing email validation allows unauthorized reconciliation triggering

Flux notification-controller is the event forwarder and notification dispatcher for the GitOps Toolkit controllers. Prior to 1.8.3, the gcr Receiver type in Flux notification-controller does not validate the email claim of Google OIDC tokens used for Pub/Sub push authentication. This allows any...

PT-2026-31735

Name of the Vulnerable Software and Affected Versions Flux notification-controller versions prior to 1.8.3 Description Flux notification-controller is the event forwarder and notification dispatcher for the GitOps Toolkit controllers. The gcr Receiver type does not validate the email claim of...