CVE-2026-25874

critical · 9.3

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.

9.3

CVSS

15.5%

EPSS (exploit prob.)

97th

EPSS percentile

2026-04-23

Published

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

Weaknesses

CWE-502

Affected products

Vendor	Product	Affected versions
huggingface	lerobot	<= 0.5.1

Check a specific version with /api/v1/cve/match.

References

https://chocapikk.com/posts/2026/lerobot-pickle-rce/
https://github.com/huggingface/lerobot/issues/3047
https://github.com/huggingface/lerobot/issues/3134
https://github.com/huggingface/lerobot/pull/3048
https://www.vulncheck.com/advisories/lerobot-unsafe-deserialization-remote-code-execution-via-grpc

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-25874