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.
References
| Link | Resource |
|---|---|
| https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76 | Patch |
| https://huntr.com/bounties/ecf5ccc4-39e7-4fb3-b547-14a41d31a184 | Exploit Third Party Advisory |
| https://huntr.com/bounties/ecf5ccc4-39e7-4fb3-b547-14a41d31a184 | Exploit Third Party Advisory |
Configurations
History
02 Aug 2025, 01:20
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Huggingface
Huggingface transformers |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
| CPE | cpe:2.3:a:huggingface:transformers:*:*:*:*:*:*:*:* | |
| References | () https://huntr.com/bounties/ecf5ccc4-39e7-4fb3-b547-14a41d31a184 - Exploit, Third Party Advisory | |
| References | () https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76 - Patch |
07 Jul 2025, 16:15
| Type | Values Removed | Values Added |
|---|---|---|
| CWE |
07 Jul 2025, 10:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-07-07 10:15
Updated : 2025-08-02 01:20
NVD link : CVE-2025-3262
Mitre link : CVE-2025-3262
JSON object : View
Products Affected
huggingface
- transformers
CWE
No CWE.