exploitCVE-2026-56121
CVE-2026-56121: Feast unauthenticated RCE — dill.loads before the auth check
A single unauthenticated gRPC call to Feast's registry server runs dill.loads on an attacker-supplied UDF body — the deserialization happens before the permission check. Dockerized lab plus a stdlib-only pickle gadget.
cvercefeastdeserializationpoc