{"cve":"CVE-2026-46715","nvd":{"published":"2026-07-20T18:16:52.937","modified":"2026-10-24T20:10:00.137","status":"Deferred","description":"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.","cvss_v4":{"vector":"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","score":5.3},"cvss_v3":null,"cwes":["CWE-287"],"references":["https://github.com/pallets-eco/flask-security/commit/8e69f3a94a463c0e8ddc46e31743717559fd8d48","https://github.com/pallets-eco/flask-security/security/advisories/GHSA-97r5-pg8x-p63p","https://github.com/pallets-eco/flask-security/security/advisories/GHSA-97r5-pg8x-p63p"],"products":[],"source":"nvd","synced_at":"2026-10-25T17:50:08.599881581+00:00"},"epss":{"cve":"CVE-2026-46715","score":0.00352,"percentile":0.28533,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-97r5-pg8x-p63p","url":"https://osv.dev/vulnerability/GHSA-97r5-pg8x-p63p","summary":"Flask-Security-Too OAuth reauthentication freshness bypass via cross-   user OAuth identity acceptance","modified":"2026-07-13T16:43:10.074737178Z","packages":[{"ecosystem":"PyPI","name":"flask-security-too","purl":"pkg:pypi/flask-security-too","ranges":[">=5.8.0 <5.8.1"],"fixed":["5.8.1"]}]},{"id":"PYSEC-2026-2478","url":"https://osv.dev/vulnerability/PYSEC-2026-2478","summary":"Flask-Security-Too OAuth reauthentication freshness bypass via cross-   user OAuth identity acceptance","modified":"2026-07-13T16:31:46.462054176Z","packages":[{"ecosystem":"PyPI","name":"flask-security-too","purl":"pkg:pypi/flask-security-too","ranges":[">=5.8.0 <5.8.1"],"fixed":["5.8.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}