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CVE-2025-6051
Good to know:
Date: September 14, 2025
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.
Severity Score
Related Resources (7)
Severity Score
Weakness Type (CWE)
Inefficient Regular Expression Complexity
CWE-1333Top Fix
Upgrade Version
Upgrade to version transformers - 4.53.0;transformers - 4.53.0;transformers - 4.53.0;https://github.com/huggingface/transformers.git - v4.53.0
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | NONE |
| Availability (A): | LOW |