CVE-2026-25874: Huggingface Lerobot

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

LeRobot through 0.5.1 contains an unsafe deserialization vulnerability in the async inference pipeline where pickle.loads() is used to deserialize data received over unauthenticated gRPC channels without TLS in the policy server and robot client components. An unauthenticated network-reachable attacker can achieve arbitrary code execution on the server or client by sending a crafted pickle payload through the SendPolicyInstructions, SendObservations, or GetActions gRPC calls.

Affected products

• Huggingface Lerobot: up to and including 0.5.1

Published 2026-04-23. Last modified 2026-07-14.