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CVE-2025-1194— Regular Expression Denial of Service (ReDoS) in huggingface/transformers

Quick assessment

Affected
huggingface huggingface/transformers
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

transformers是Hugging Face开源的一个用于机器学习的应用程序。 transformers 4.48.1版本存在安全漏洞，该漏洞源于正则表达式处理特制输入时出现指数级复杂度，可能导致拒绝服务。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.48% · P40

Possible ATT&CK Techniques 1 AI

T1499.002 · Service Exhaustion Flood
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I. Basic Information for CVE-2025-1194

Vulnerability Information
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Vulnerability Title
Regular Expression Denial of Service (ReDoS) in huggingface/transformers
Source: CVE Program / CVE List V5
Vulnerability Description
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).
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
transformers 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
transformers是Hugging Face开源的一个用于机器学习的应用程序。 transformers 4.48.1版本存在安全漏洞，该漏洞源于正则表达式处理特制输入时出现指数级复杂度，可能导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
huggingface huggingface/transformers unspecified ~ 4.50.0 -

II. Public POCs for CVE-2025-1194

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III. Intelligence Information for CVE-2025-1194

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Patches & Fixes for CVE-2025-1194 (1)

Vendor Advisories for CVE-2025-1194 (1)

IV. Related Vulnerabilities

Same product: huggingface/transformers
Same vendor: huggingface
Same weakness: CWE-1333

V. Comments for CVE-2025-1194

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