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2.1

Huggingface Smolagents 1.25.0.dev0 May Allow Remote Code Injection

CVE-2026-4963 · published 7 months ago
Summary

A security weakness in Huggingface Smolagents 1.25.0.dev0 allows attackers to inject malicious code, potentially from a remote location. This could lead to unauthorized access or data tampering. To protect your systems, update to the latest version of Smolagents or consider using a different version that has been reviewed for security.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
Ecosystem VendorProductAffected versions
– huggingface smolagents 1.25.0
cpe:2.3:a:huggingface:smolagents:1.25.0:dev0:*:*:*:*:*:*
pip aymeric roucher smolagents <= 1.25.0.dev0
Original advisory text
Hugging Face Smolagents has an Injection issue
A weakness has been identified in huggingface smolagents 1.25.0.dev0. This affects the function evaluate_augassign/evaluate_call/evaluate_with of the file src/smolagents/local_python_executor.py of the component Incomplete Fix CVE-2025-9959. This manipulation causes code injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
2.1 Low
Exploitation
<1% chance of attack within 30 days
Type
CWE-74Injection
CWE-94Code Injection
Timeline
Published27 Mar 2026
Updated4 Nov 2026
First seen27 Mar 2026
Sources
CVE-2026-4963 · NVD
GHSA-54fq-v6x8-244g · GHSA
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