CVE-2026-25874

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.

CVSS v4.0

9.3 CRITICALCVSS: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

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

15.55% chance of exploitation in the next 30 days, 97th percentile

Published

2026-04-23

Updated

2026-07-14

Proof-of-concept exploits (1)

• https://chocapikk.com/posts/2026/lerobot-pickle-rce/

References

• CVE Record
• NVD entry

Related

• CVE-2026-25873
• CVE-2026-25879
• CVE-2026-25872
• CVE-2026-25881
• CVE-2026-2587
• CVE-2026-25882