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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 15.5%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 4.0
- 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/M
- EPSS
- 15.55% probability · 97th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- huggingface/lerobot
- Source
- disclosure@vulncheck.com
References
- https://chocapikk.com/posts/2026/lerobot-pickle-rce/Exploit, Mitigation, Third Party Advisory
- https://github.com/huggingface/lerobot/issues/3047Exploit, Issue Tracking, Third Party Advisory
- https://github.com/huggingface/lerobot/issues/3134Issue Tracking
- https://github.com/huggingface/lerobot/pull/3048Issue Tracking, Patch
- https://www.vulncheck.com/advisories/lerobot-unsafe-deserialization-remote-code-execution-via-grpcExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.