PT-2026-53624 · Pypi · Toui

Published 2026-06-29 · Updated 2026-06-29

OSV

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Impact

Websites that use Website.user vars property in versions.

Patches

It affects versions v2.0.1 to v2.4.0. Please upgrade to v2.4.1

Workarounds

Do not use Website.user vars in websites when using versions v2.0.1 to v2.4.0. Also, do not use Website.signin user() in version v2.4.0 only.

Explanation

ToUI is using Flask-Caching (SimpleCache) to store user variables. My misunderstanding was that these caches are stored in the client's browser, but it seems that these are stored in the server side.

Fix

Related Identifiers

PYSEC-2026-555

Affected Products

Toui

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2023-33175 · Security Note
• https://osv.dev/vulnerability/PYSEC-2026-555 · Vendor Advisory
• https://github.com/mubarakalmehairbi/ToUI · Note
• https://github.com/mubarakalmehairbi/ToUI/security/advisories/GHSA-hh7j-pg39-q563 · Note
• https://github.com/mubarakalmehairbi/ToUI/releases/tag/v2.4.1 · Note
• https://pypi.org/project/toui · Note
• https://github.com/advisories/GHSA-hh7j-pg39-q563 · Note