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CVE-2025-5120 — Vulnerability in smolagents — CVE Details

CRITICAL

smolagents has Sandbox Escape Vulnerability in the local_python_executor.py Module

Published July 27, 2025Updated June 29, 2026Source: osv

Summary

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.

Advisory Timeline

  • First published July 27, 2025 (442 days ago).
  • Last revised June 29, 2026 — 337 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

pip
Update smolagents to 1.17.0 or later
pip install "smolagents>=1.17.0"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: pypi (1).

PackageEcosystemAffectedFixed In
smolagents
pypi
0.1.0, 0.1.2, 0.1.3, 1.0.0 (+24 more)1.17.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.9 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
Low

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

References

Frequently Asked Questions

What is CVE-2025-5120?
smolagents has Sandbox Escape Vulnerability in the local_python_executor.py Module This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.9/10).
How do I check if my project is affected by CVE-2025-5120?
CVE-2025-5120 affects smolagents. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-5120 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.9

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-6v92-r5mx-h5fx
PYSEC-2026-542

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