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CVE-2025-3262

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-3262

Severity

5.3

Medium

CVSS V3

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Summary

Regular Expression Denial of Service (ReDoS) in huggingface/transformers

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.

References

Affected packages

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