CVE-2026-4963

MEDIUM

huggingface smolagents Incomplete Fix CVE-2025-9959 local_python_executor.py evaluate_with code injection

Title source: cna
STIX 2.1

Description

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.

Scores

CVSS v3 6.3
EPSS 0.0002
EPSS Percentile 3.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-74 CWE-94
Status published
Products (1)
huggingface/smolagents 1.25.0.dev0
Published Mar 27, 2026
Tracked Since Mar 29, 2026