CVE-2026-4963

MEDIUM

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

Title source: cna

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.

References (7)

Core 7

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-353840 | huggingface smolagents Incomplete Fix CVE-2025-9959 local_python_executor.py evaluate_with code injection

https://vuldb.com/?id.353840

Signature, Permissions Required signature permissions-required

VDB-353840 | CTI Indicators (IOB, IOC, TTP, IOA)

https://vuldb.com/?ctiid.353840

Third Party Advisory third-party-advisory

Submit #777623 | HuggingFace smolagents 1.25.0.dev0 CWE-693

https://vuldb.com/?submit.777623

Third Party Advisory third-party-advisory

Submit #777643 | HuggingFace smolagents 1.25.0.dev0 CWE-693 (Duplicate)

https://vuldb.com/?submit.777643

Third Party Advisory third-party-advisory

Submit #777644 | HuggingFace smolagents 1.25.0.dev0 CWE-693 (Duplicate)

https://vuldb.com/?submit.777644

Exploit exploit

https://gist.github.com/YLChen-007/35b7d46e892266a0ed6dbe57802858be

Scores

CVSS v3 6.3

EPSS 0.0057

EPSS Percentile 42.8%

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 (3)

huggingface/smolagents 1.25.0 dev0

huggingface/smolagents 1.25.0.dev0

pypi/smolagents 0 - 1.25.0.dev0PyPI

Published Mar 27, 2026

Tracked Since Mar 29, 2026