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Advisory record · GHSA-q9r5-6hrr-9ph7

Hugging Face smolagents: Unsafe deserialization in Remote Python Executor leads to RCE

CVSS 10.0 CriticalCriticalEPSS 0.012 · 69th percentile

Critical, because:

  • CVSS score 10.0: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 29 Jun 2026, 11:50 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
smolagentsPyPI<=1.23.0No fixed version yet
Identifiers
GHSA-q9r5-6hrr-9ph7 · CVE-2025-14931 · PYSEC-2026-543
Weakness (CWE)
CWE-502
Tags
Published
29 Jun 2026
Updated
1 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The smolagents package, versions up to and including 1.23.0, is vulnerable to unsafe deserialization of pickle data in its Remote Python Executor. A remote attacker who does not need to authenticate can send crafted data to execute arbitrary code in the context of the service account. No fix is listed.

Written 10 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
10.0 Critical 3.0 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CNA (zdi)
  • CISA KEV Not listed.
  • EPSS 0.012, the 69th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 29 Jun 2026. New records show when each source confirmed them.

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.