CVE-2025-1194

A Regular Expression Denial of Service (ReDoS) vulnerability was identified in the huggingface/transformers library, specifically in the file `tokenization_gpt_neox_japanese.py` of the GPT-NeoX-Japanese model. The vulnerability occurs in the SubWordJapaneseTokenizer class, where regular expressions process specially crafted inputs. The issue stems from a regex exhibiting exponential complexity under certain conditions, leading to excessive backtracking. This can result in high CPU usage and potential application downtime, effectively creating a Denial of Service (DoS) scenario. The affected version is v4.48.1 (latest).
Configurations

Configuration 1 (hide)

cpe:2.3:a:huggingface:transformers:*:*:*:*:*:*:*:*

History

01 Aug 2025, 21:56

Type Values Removed Values Added
References () https://github.com/huggingface/transformers/commit/92c5ca9dd70de3ade2af2eb835c96215cc50e815 - () https://github.com/huggingface/transformers/commit/92c5ca9dd70de3ade2af2eb835c96215cc50e815 - Patch
References () https://huntr.com/bounties/86f58dcd-683f-4adc-a735-849f51e9abb2 - () https://huntr.com/bounties/86f58dcd-683f-4adc-a735-849f51e9abb2 - Exploit, Third Party Advisory
Summary
  • (es) Se identificó una vulnerabilidad de denegación de servicio por expresión regular (ReDoS) en la librería huggingface/transformers, concretamente en el archivo `tokenization_gpt_neox_japanese.py` del modelo GPT-NeoX-Japanese. La vulnerabilidad se produce en la clase SubWordJapaneseTokenizer, donde las expresiones regulares procesan entradas especialmente manipuladas. El problema se debe a que una expresión regular presenta una complejidad exponencial en determinadas condiciones, lo que provoca un retroceso excesivo. Esto puede provocar un alto consumo de CPU y un posible tiempo de inactividad de la aplicación, creando así un escenario de denegación de servicio (DoS). La versión afectada es la v4.48.1 (última versión).
CPE cpe:2.3:a:huggingface:transformers:*:*:*:*:*:*:*:*
First Time Huggingface transformers
Huggingface
CVSS v2 : unknown
v3 : 4.3
v2 : unknown
v3 : 6.5

29 Apr 2025, 14:15

Type Values Removed Values Added
References () https://huntr.com/bounties/86f58dcd-683f-4adc-a735-849f51e9abb2 - () https://huntr.com/bounties/86f58dcd-683f-4adc-a735-849f51e9abb2 -

29 Apr 2025, 12:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-04-29 12:15

Updated : 2025-08-01 21:56


NVD link : CVE-2025-1194

Mitre link : CVE-2025-1194

CVE.ORG link : CVE-2025-1194


JSON object : View

Products Affected

huggingface

  • transformers
CWE
CWE-1333

Inefficient Regular Expression Complexity