CVE-2026-25874

Name: CVE-2026-25874
Creator: NVD / NIST
Published: 2026-04-23T20:16:13.903+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 15.55%

Last modified Jun 17, 2026

CVE-2026-25874 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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.. EPSS estimates a 15.55% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

9.3/10

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

EPSS Probability

15.55%

96.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Huggingface	Lerobot	<= 0.5.1

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

Timeline

Published: Apr 23, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-25874?

How severe is CVE-2026-25874?

CVE-2026-25874 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 15.55% probability of exploitation in the next 30 days.

How do I fix CVE-2026-25874?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-25874?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST