Skip to content
fr Sign in
5.3 Medium

CVE-2025-6051 A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library,…

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.

Affected products and versions

Product Affected versions Fixed in
huggingface/transformers 4.53 earliest → < 4.53.0 4.53.0

References

Timeline

  1. Published
  2. Last modified

Other CVEs of huggingface/transformers

The 20 CVEs of huggingface/transformers →
CVE-2026-9856 A vulnerability in huggingface/transformers… 7.1 High CVE-2026-5241 A vulnerability in the LightGlue model loading path of huggingface/transformers version 5.2.0 allows an… 8.0 High CVE-2026-4372 A critical remote code execution vulnerability exists in all versions of the HuggingFace transformers library prior to… 7.8 High CVE-2026-1839 A vulnerability in the HuggingFace Transformers library, specifically in the `Trainer` class, allows for arbitrary… 6.5 Medium
Track this CVE