Vulnerability · Published Dec 23, 2025 · Assigned by zdi

CVE-2025-14926Hugging Face Transformers SEW convert_config Code Injection Remote Code Execution Vulnerability

High 7.8

In plain English

A high-severity code injection in Transformers from Hugging Face. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 3.0)7.8High

Exploit odds (30 days)0.3%top 72.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Hugging Face Transformers SEW convert_config Code Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Hugging Face Transformers. User interaction is required to exploit this vulnerability in that the target must convert a malicious checkpoint. The specific flaw exists within the convert_config function. The issue results from the lack of proper validation of a user-supplied string before using it to execute Python code. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-28251.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	transformers	no fix listed	PYSEC-2025-214

Affected products (as reported)

Vendor	Product	Versions
Hugging Face	Transformers	4.57.0

Weakness: CWE-94 · Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

ZDI-25-1147 x_research-advisory