CVE-2025-6051: medium-severity vulnerability in huggingface/transformers
Regular Expression Denial of Service (ReDoS) in huggingface/transformers
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.4%
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected products
huggingface · huggingface/transformersRelated CVEs — huggingface/transformers
In the same product, most dangerous first.
CVE-2024-3568LOWArbitrary Code Execution via Deserialization in huggingface/transformersEPSS 2.1%CVE-2023-6730CRITICALDeserialization of Untrusted Data in huggingface/transformersEPSS 0.9%CVE-2024-12720MEDIUMRegular Expression Denial of Service (ReDoS) in huggingface/transformersEPSS 0.7%CVE-2023-7018CRITICALDeserialization of Untrusted Data in huggingface/transformersEPSS 0.7%CVE-2026-4372HIGHArbitrary Remote Code Execution via `_attn_implementation_internal` Config Injection in huggingface/transformersEPSS 0.7%CVE-2025-2099MEDIUMRegular Expression Denial of Service (ReDoS) in huggingface/transformersEPSS 0.6%