SSRF URL Validator Bypass Targeting GCP Cloud Run Metadata Endpoint

Ibrahim Saud@tektrix

•updated Jun 30, 2026•0•0•3

Detects Server-Side Request Forgery (SSRF) attempts targeting cloud provider metadata services (specifically GCP) or sensitive local files like '/proc/self/environ' using common bypass patterns and request structures. These requests typically originate from an application process attempting to access internal environment variables or cloud identity metadata.