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    CVE-2024-49766

    Werkzeug is a Web Server Gateway Interface web application library. On Python < 3.11 on Windows, os.path.isabs() does not catch UNC paths like //server/share. Werkzeug's safe_join() relies on this check, and so can produce a path that is not safe, potentially allowing unintended access to data. Applications using Python >= 3.11, or not using Windows, are not vulnerable. Werkzeug version 3.0.6 contains a patch.

    Published:Oct 25, 2024
    Last Modified:Dec 3, 2025
    EPS:Oct 25, 2024
    EPSS Score:0.00206
    CVSS Score:5.3

    Affected Products

    Vendor
    Microsoft
    Product
    Windows
    Vendor
    Palletsprojects
    Product
    Werkzeug

    Exploits

    No exploit reference

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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