CVE-2026-25874: LeRobot Unsafe Deserialization Remote Code Execution via gRPC
Description
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.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · CWE-502
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Hugging Face: LeRobot
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- chocapikk.com/posts/2026/lerobot-pickle-rce/ (opens in new tab)
- github.com/huggingface/lerobot/issues/3047 (opens in new tab)
- github.com/huggingface/lerobot/issues/3134 (opens in new tab)
- github.com/huggingface/lerobot/pull/3048 (opens in new tab)
- www.vulncheck.com/advisories/lerobot-unsafe-deserialization-remote-code-execution-via-g… (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)