Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 19.2%
CVSS Severity
CVSS v3 Score 9.8
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
Products affected by CVE-2026-25874
-
cpe:2.3:a:huggingface:lerobot:0.3.2
-
cpe:2.3:a:huggingface:lerobot:0.3.3
-
cpe:2.3:a:huggingface:lerobot:0.4.0
-
cpe:2.3:a:huggingface:lerobot:0.4.1
-
cpe:2.3:a:huggingface:lerobot:0.4.2
-
cpe:2.3:a:huggingface:lerobot:0.4.3
-
cpe:2.3:a:huggingface:lerobot:0.4.4
-
cpe:2.3:a:huggingface:lerobot:0.5.0
-
cpe:2.3:a:huggingface:lerobot:0.5.1