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
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- huggingface/lerobot
- Source
- disclosure@vulncheck.com
EPSS moved from 1.0% on 24 September 2026 to 15.5% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
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, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.