CVE-2025-3262 – transformers

Package

Manager: pip
Name: transformers
Vulnerable Version: >=4.49.0 <4.51.0

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS: 0.00073 pctl0.22784

Details

Transformers vulnerable to ReDoS attack through its SETTING_RE variable A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the huggingface/transformers repository, specifically in version 4.49.0. The vulnerability is due to inefficient regular expression complexity in the `SETTING_RE` variable within the `transformers/commands/chat.py` file. The regex contains repetition groups and non-optimized quantifiers, leading to exponential backtracking when processing 'almost matching' payloads. This can degrade application performance and potentially result in a denial-of-service (DoS) when handling specially crafted input strings. The issue is fixed in version 4.51.0.

Metadata

Created: 2025-07-07T12:30:22Z
Modified: 2025-08-04T15:29:18Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/07/GHSA-489j-g2vx-39wf/GHSA-489j-g2vx-39wf.json
CWE IDs: ["CWE-1333"]
Alternative ID: GHSA-489j-g2vx-39wf
Finding: F211
Auto approve: 1