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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: 2026-04-02 16:24
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
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
miguelgrinberg Flask-HTTPAuth Affected: < 4.8.1
Create a notification for this product.
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: 2026-04-02 16:24
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
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
miguelgrinberg Flask-HTTPAuth Affected: < 4.8.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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