Hugging Face smolagents Remote Python Executor Deserialization of Untrusted Data Remote Code Execution Vulnerability

Description

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.

Scores

EPSS (exploitation in 30 days)

1.2% · top 31% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 10.0.

Weakness

• CWE-502: Deserialization of Untrusted Data (opens in a new tab)All about CWE-502 and its CVEs

Affected products

• Hugging Face · smolagents

  • affected 1.22.0

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• PyPIsmolagentsGHSA-q9r5-6hrr-9ph7 (opens in a new tab)

References (1)

• ZDI-25-1143 (opens in a new tab)x_research-advisory

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-q9r5-6hrr-9ph7 (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2025-14931](https://trackcve.app/badge/CVE-2025-14931.svg)](https://trackcve.app/cve/CVE-2025-14931)

Record last updated 26 Dec 2025, 14:34 UTC.