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Security Advisories

CVE-2025-6051

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-6051

Severity

5.3

Medium

CVSS V3

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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.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2025-6051
  • https://github.com/advisories/GHSA-rcv9-qm8p-9p6j
  • https://huntr.com/bounties/af929523-7b59-418a-bf55-301830b2ac9d
  • https://github.com/huggingface/transformers/commit/ba8eaba9865618253f997784aa565b96206426f0

Affected packages

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