CVE-2026-46715
Flask-Security-Too OAuth reauthentication freshness bypass via cross- user OAuth identity acceptance
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
Flask-Security-Too allows users to add security features to their Flask applicationa. Version 5.8.0's OAuth reauthentication flow can mark a session as fresh after verifying an OAuth account that belongs to a different user. If an attacker can operate an already-authenticated but stale victim session, they can complete OAuth verification using their own OAuth identity. The victim session is then treated as recently reauthenticated, allowing freshness-protected account actions to proceed. Version 5.8.1 contains a fix for this issue.
| CWE | CWE-287 |
| Vendor | pallets-eco |
| Product | flask-security-too |
| Published | Jul 20, 2026 |
| Last Updated | Jul 20, 2026 |
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Affected Versions
pallets-eco / Flask-Security-Too
>= 5.8.0, < 5.8.1