Deserialization in Hugging Face Smolagents

CVE-2025-14931

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.

Vulnerability class: Insecure Deserialization

EPSS: 0.010 (57.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-14931?
CVE-2025-14931 is a critical-severity vulnerability in Hugging Face Smolagents, classified under Deserialization of Untrusted Data. CVSS score: 10.0/10. Published 2025-12-23.
How severe is CVE-2025-14931?
Critical severity. CVSS v3 base score is 10.0 out of 10.