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    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).

    Published:Apr 29, 2025
    Last Modified:Aug 1, 2025
    EPS:Apr 29, 2025
    EPSS Score:0.00148
    CVSS Score:6.5

    Affected Products

    Vendor
    Huggingface
    Product
    Transformers

    Exploits

    https://huntr.com/bounties/86f58dcd-683f-4adc-a735-849f51e9abb2https://huntr.com/bounties/86f58dcd-683f-4adc-a735-849f51e9abb2

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-492 Regular Expression Exponential Blowup

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High