9.8

CVE-2026-25874: LeRobot Unsafe Deserialization Remote Code Execution via gRPC

Analyzed
Published 23-04-2026Last modified 14-07-2026

Vulnerability summary

CVE-2026-25874 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in hugging face lerobot. EPSS estimates a 15.55% chance of exploitation in the next 30 days, higher than 96.8% of scored vulnerabilities. 3 public exploits are recorded.

Priority
Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
15.55%
0%100%
Medium · +14.60 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits3reference, github

Timeline

  1. 23-04-2026
    PublishedVulnerability first disclosed.
  2. 14-07-2026
    Last modifiedVulnerability information updated.

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 metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

15.55%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

Increase +14.60 pp

From 0.95% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

3 found
  • referenceUnverified

    Exploit Reference (chocapikk.com)

    Maturity: unknown

  • githubUnverified

    Lerobot

    Maturity: poc

  • referenceUnverified

    Exploit Reference (vulncheck.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Hugging face1 product
Huggingface1 product

2 vendors · 2 products

References

5 links