{"id":"CVE-2026-46715","summary":"Flask-Security-Too OAuth reauthentication freshness bypass via cross- user OAuth identity acceptance","details":"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.","aliases":["GHSA-97r5-pg8x-p63p","PYSEC-2026-2478"],"modified":"2026-07-25T03:56:42.033777628Z","published":"2026-07-20T17:10:27.014Z","database_specific":{"cwe_ids":["CWE-287"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46715.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46715.json"},{"type":"ADVISORY","url":"https://github.com/pallets-eco/flask-security/security/advisories/GHSA-97r5-pg8x-p63p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46715"},{"type":"FIX","url":"https://github.com/pallets-eco/flask-security/commit/8e69f3a94a463c0e8ddc46e31743717559fd8d48"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pallets-eco/flask-security","events":[{"introduced":"08288dff6907e413d848a16aaf43fc2c2b2a3b72"},{"fixed":"8e69f3a94a463c0e8ddc46e31743717559fd8d48"}],"database_specific":{"extracted_events":[{"introduced":"5.8.0"},{"fixed":"5.8.1"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46715.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"}]}