CVE-2026-4963— huggingface smolagents Incomplete Fix CVE-2025-9959 local_python_executor.py evaluate_with code injection
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I. Basic Information for CVE-2026-4963
Vulnerability Information
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Vulnerability Title
huggingface smolagents Incomplete Fix CVE-2025-9959 local_python_executor.py evaluate_with code injection
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
smolagents 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
smolagents是Hugging Face开源的一个代理的基本库。 smolagents 1.25.0.dev0版本存在安全漏洞，该漏洞源于对文件src/smolagents/local_python_executor.py中函数的错误操作，可能导致代码注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| huggingface | smolagents | 1.25.0.dev0 | cpe:2.3:a:huggingface:smolagents:*:*:*:*:*:*:*:* |
II. Public POCs for CVE-2026-4963
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|---|
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- Submit #777623: HuggingFace smolagents 1.25.0.dev0 CWE-693third-party-advisory
- Submit #777643: HuggingFace smolagents 1.25.0.dev0 CWE-693third-party-advisory
- Submit #777644: HuggingFace smolagents 1.25.0.dev0 CWE-693third-party-advisory
- CVE-2026-4963 huggingface smolagents Incomplete Fix CVE-2025-9959 local_python_executor.py evaluate_with code injectionvdb-entrytechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2026-4963
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V. Comments for CVE-2026-4963
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