CVE-2026-25874
LeRobot Unsafe Deserialization Remote Code Execution via gRPC
CRITICAL 9.3EPSS 1.0%
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
- Hugging Face · LeRobot
- CVSS v4.0 VULNCHECK
- 9.3 CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v3.1 NVD
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.95% chance of exploitation in the next 30 days, 61st percentile
- Published
- 2026-04-23
- Updated
- 2026-07-14
Proof-of-concept exploits (1)
Security advisories
- https://chocapikk.com/posts/2026/lerobot-pickle-rce
- huggingface/lerobot/issues/3047
- https://www.vulncheck.com/advisories/lerobot-unsafe-deserialization-remote-code-execution…