--- cve: "CVE-2026-82311" severity: "LOW" cvss: 3.1 epss: "1%" vendor: "Apache Software Foundation" kev: false exploited: false published: "2026-09-16 09:17:06" tags: [cve, security, low] source: tsecurity.de CVE-Dossier exported: "2026-09-20T20:53:50+02:00" --- # CVE-2026-82311 > 3.1 LOW · 🧪 PoC ## Beschreibung 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. Affects 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. apache-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. Users of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which compares the identifiers consistently. ## Patch verfügbar (OSV) - bfb054e9e867b8b9a6a449e43bfba97f645e025e (Commit) ## Referenzen - - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-82311) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_