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    2 vulnerabilities found for Flask-HTTPAuth by miguelgrinberg

    CVE-2026-34531 (GCVE-0-2026-34531)

    Vulnerability from nvd – Published: 2026-04-01 20:44 – Updated: 2026-05-28 17:14
    VLAI
    Title
    Flask-HTTPAuth invokes token verification callback when missing or empty token was given by client
    Summary
    Flask-HTTPAuth provides Basic, Digest and Token HTTP authentication for Flask routes. Prior to version 4.8.1, in a situation where the client makes a request to a token protected resource without passing a token, or passing an empty token, Flask-HTTPAuth would invoke the application's token verification callback function with the token argument set to an empty string. If the application had any users in its database with an empty string set as their token, then it could potentially authenticate the client request against any of those users. This issue has been patched in version 4.8.1.
    Severity
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-287 - Improper Authentication
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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    CVE-2026-34531 (GCVE-0-2026-34531)

    Vulnerability from cvelistv5 – Published: 2026-04-01 20:44 – Updated: 2026-05-28 17:14
    VLAI
    Title
    Flask-HTTPAuth invokes token verification callback when missing or empty token was given by client
    Summary
    Flask-HTTPAuth provides Basic, Digest and Token HTTP authentication for Flask routes. Prior to version 4.8.1, in a situation where the client makes a request to a token protected resource without passing a token, or passing an empty token, Flask-HTTPAuth would invoke the application's token verification callback function with the token argument set to an empty string. If the application had any users in its database with an empty string set as their token, then it could potentially authenticate the client request against any of those users. This issue has been patched in version 4.8.1.
    Severity
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-287 - Improper Authentication
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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