{"schemaVersion":3,"id":"CVE-2026-82311","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Apache Airflow FAB provider: resetting a user's password does not delete that user's existing database-backed sessions, despite documented behaviour that it does. The cleanup compares the string identifier Flask-Login stores in the session against the user's integer database identifier, so the comparison never matches and no session is removed. An attacker who already holds a copy of the victim's session cookie keeps access as that user after the password change, so the reset does not evict them.\n\nAffects deployments using the FAB auth manager with `[fab] session_backend=database`. The trigger is an administrator (or the user) running the supported password-reset command as a containment action after a session cookie has been compromised; the secure-cookie backend is out of scope, as it documents that it cannot centrally delete sessions.\n\napache-airflow-providers-fab 3.9.0 also fixes CVE-2026-86462, a second, independent route to the same outcome via the Admin user-edit endpoint; a single upgrade closes both.\n\nUsers of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which compares the identifiers consistently.","dates":{"published":"2026-09-16T09:00:38.459Z","modified":"2026-09-17T19:27:29.873Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00977,"percentile":0.61486,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0.3729999999999999,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.00604},"history":[{"date":"2026-09-16T00:00:00.000Z","score":0.00195,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00198,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00604,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0095,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0095,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0095,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0095,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0095,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00977,"percentile":0.61486}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.00604,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0095,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0095,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0095,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0095,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0095,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00977,"percentile":null},{"date":"2026-10-12T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