CVE-2026-56121-Feast-Unauth-RCE

CVE-2026-56121 — Feast Unauthenticated RCE via gRPC Registry Deserialization The Feast 0.63.0 registry gRPC server dill.loads the user-defined function of an OnDemandFeatureView as soon as a spec arrives — before any authorization check. The shipped config is auth: noauth, so any client that can...

EXPLOIT-CVE-2026-56121

CVE-2026-56121 — Feast Unauthenticated RCE ApplyFeatureView gRPC Deserialization Unauthenticated remote code execution in Feast ⚠️ For authorized security testing and education only. Only run this against the bundled Docker lab or systems you own / are explicitly permitted to test. Unauthorized us...

CVE-2026-56121

Feast before 0.63.0 contains an unsafe deserialization vulnerability that allows unauthenticated or unauthorized attackers to achieve remote code execution by sending a crafted gRPC request to the registry server. The userdefinedfunction.body field of an OnDemandFeatureView spec is decoded from...