CVE-2026-46715 (GCVE-0-2026-46715)

Vulnerability from cvelistv5 – Published: 2026-07-20 17:10 – Updated: 2026-07-20 18:43
VLAI
Title
Flask-Security-Too OAuth reauthentication freshness bypass via cross- user OAuth identity acceptance
Summary
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.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 18:43 UTC
CWE
  • CWE-287 - Improper Authentication
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7763 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
pallets-eco Flask-Security-Too Affected: >= 5.8.0, < 5.8.1
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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