Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Huggingface | Transformers | < 4.51.0 |
Related Weaknesses (CWE)
References
- https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6aPatch
- https://huntr.com/bounties/ecf5ccc4-39e7-4fb3-b547-14a41d31a184ExploitThird Party Advisory
- https://huntr.com/bounties/ecf5ccc4-39e7-4fb3-b547-14a41d31a184ExploitThird Party Advisory
FAQ
What is CVE-2025-3262?
CVE-2025-3262 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2025-3262?
CVE-2025-3262 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-3262?
Check the references section above for vendor advisories and patch information. Affected products include: Huggingface Transformers.