PT-2026-53611 · Pypi · Smolagents

Published 2026-06-29 · Updated 2026-06-29

OSV

CVSS v3.1

9.9

Critical

Base vector

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

A sandbox escape vulnerability was identified in huggingface/smolagents version 1.14.0, allowing attackers to bypass the restricted execution environment and achieve remote code execution (RCE). The vulnerability stems from the local python executor.py module, which inadequately restricts Python code execution despite employing static and dynamic checks. Attackers can exploit whitelisted modules and functions to execute arbitrary code, compromising the host system. This flaw undermines the core security boundary intended to isolate untrusted code, posing risks such as unauthorized code execution, data leakage, and potential integration-level compromise. The issue is resolved in version 1.17.0.

Fix

Related Identifiers

PYSEC-2026-542

Affected Products

Smolagents

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2025-5120 · Security Note
• https://osv.dev/vulnerability/PYSEC-2026-542 · Vendor Advisory
• https://github.com/huggingface/smolagents · Note
• https://github.com/huggingface/smolagents/commit/33a942e62b6fbf6a35d41f1c735bda2d64c163d0 · Note
• https://huntr.com/bounties/63ab1cfe-b573-4cf5-a7d3-fb6c957e34b0 · Note
• https://pypi.org/project/smolagents · Note
• https://github.com/advisories/GHSA-6v92-r5mx-h5fx · Note