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AI agent vulnerability · smolagents

CVE-2025-14931: Hugging Face smolagents: Unsafe deserialization in Remote Python Executor leads to RCE

criticalCVSS 3.0 10.0GHSA-q9r5-6hrr-9ph7

Hugging Face smolagents Remote Python Executor Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hugging Face smolagents. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of pickle data.

Published Dec 23, 2025 · Updated May 7, 2026

Affected packages

smolagents

Ecosystem
PyPI
Affected
<= 1.23.0
Fixed in
No patched version yet
Check
pip show smolagents

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

Hugging Face smolagents Remote Python Executor Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hugging Face smolagents. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the parsing of pickle data. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-28312.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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