CVE-2025-6051
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
transformersPyPI | < 4.53.0 | 4.53.0 |
Affected products
5- osv-coords4 versionspkg:apk/chainguard/py3.11-text-generation-inferencepkg:apk/chainguard/text-generation-inferencepkg:apk/chainguard/text-generation-inference-compatpkg:pypi/transformers
< 3.3.6-r3+ 3 more
- (no CPE)range: < 3.3.6-r3
- (no CPE)range: < 3.3.7-r9
- (no CPE)range: < 3.3.6-r3
- (no CPE)range: < 4.53.0
- huggingface/huggingface/transformersv5Range: unspecified
Patches
Vulnerability mechanics
References
6- github.com/huggingface/transformers/commit/ba8eaba9865618253f997784aa565b96206426f0nvdPatchWEB
- huntr.com/bounties/af929523-7b59-418a-bf55-301830b2ac9dnvdExploitIssue TrackingPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-rcv9-qm8p-9p6jghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-6051ghsaADVISORY
- github.com/huggingface/transformers/commit/54a02160eb030da9be18231c77791f2eb3a52216ghsaWEB
- github.com/huggingface/transformers/pull/38844ghsaWEB
News mentions
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