cvedb.io
CVE-2026-34531
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-04-01T21:17:01.147 · Last modified 2026-06-17T10:39:11.050

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.

Affected products

miguelgrinberg — flask-httpauth

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.