CVE-2026-82311: Apache Airflow FAB provider: FAB password reset never invalidates sessions: string/int _user_id comparison is always false
Apache Airflow FAB provider 2.4.2-3.8.x password reset never deletes sessions because a string/int _user_id comparison is always false.
CVE-2026-82311 affects apache-airflow-providers-fab versions 2.4.2 before 3.9.0. Resetting a user's password fails to delete that user's existing database-backed sessions despite documented behavior saying it does. The cleanup compares the string identifier Flask-Login stores in the session against the user's integer database identifier, so the comparison always evaluates false. Severity is rated moderate.
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