AI Threat Alert
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, specifically within the `normalize_numbers()` method of the `EnglishNormalizer`...
Full analysis pending. Showing NVD description excerpt.
Affected Systems
| Package | Ecosystem | Vulnerable Range | Patched |
|---|---|---|---|
| transformers | pip | < 4.53.0 | 4.53.0 |
| transformers | pip | — | No patch |
Severity & Risk
Recommended Action
Patch available
Update transformers to version 4.53.0
Compliance Impact
Compliance analysis pending. Sign in for full compliance mapping when available.
Technical Details
NVD Description
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, specifically within the `normalize_numbers()` method of the `EnglishNormalizer` class. This vulnerability affects versions up to 4.52.4 and is fixed in version 4.53.0. The issue arises from the method's handling of numeric strings, which can be exploited using crafted input strings containing long sequences of digits, leading to excessive CPU consumption. This vulnerability impacts text-to-speech and number normalization tasks, potentially causing service disruption, resource exhaustion, and API vulnerabilities.
Weaknesses (CWE)
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L References
- github.com/advisories/GHSA-rcv9-qm8p-9p6j
- github.com/huggingface/transformers/commit/54a02160eb030da9be18231c77791f2eb3a52216
- github.com/huggingface/transformers/commit/ba8eaba9865618253f997784aa565b96206426f0
- github.com/huggingface/transformers/pull/38844
- huntr.com/bounties/af929523-7b59-418a-bf55-301830b2ac9d
- nvd.nist.gov/vuln/detail/CVE-2025-6051
- github.com/huggingface/transformers/commit/ba8eaba9865618253f997784aa565b96206426f0 Patch
- huntr.com/bounties/af929523-7b59-418a-bf55-301830b2ac9d Exploit Issue Patch 3rd Party