CVE-2026-82310 Apache Airflow FAB provider: FAB auth manager: deactivated users retain and renew Core API JWT access
Deactivated users retain access via unexpired JWT tokens, bypassing administrative containment in Apache Airflow FAB provider deployments.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-82310?
CVE-2026-82310 is a high-severity authentication bypass vulnerability in Apache Airflow FAB provider, published on 16 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Apache Airflow FAB provider: deactivating a user account does not stop tokens issued to that account before deactivation. Password authentication correctly rejects the disabled account, but the Core API continues to accept an existing, unexpired token naming it, and lets that token mint a replacement — so the account keeps its role-scoped access indefinitely after an administrator has disabled it. The user replays their own legitimate credential; no signature forgery or privilege escalation is involved, and the access stays within the roles the account already held.
Affects deployments using Airflow 3 with the FAB auth manager and Core API token authentication, where an administrator deactivates an account whose row remains in the database and whose previously issued token has not expired. The trigger is administrative deactivation as a containment action, which silently fails to contain.
Users of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which rejects tokens naming a deactivated account.
Weakness: CWE-613
Which versions are affected by CVE-2026-82310?
It affects 1 product.
Products include Apache Apache-Airflow-Providers-Fab.
How do I fix CVE-2026-82310?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-82310 being exploited?
There is no known exploitation of CVE-2026-82310 in the wild and no public exploit code.
Other vulnerabilities in Apache Airflow FAB provider
- CVE-2026-82311 Security feature bypass in Apache Airflow FAB provider
- CVE-2026-59243 Auth bypass in Apache Airflow FAB provider
- CVE-2024-42447 Apache Airflow Providers FAB: FAB provider 1.2.1 and 1.2.0 did not let user to logout for Airflow
- CVE-2026-86462 Apache Airflow FAB provider: FAB Admin password PATCH does not invalidate database-backed sessions
- CVE-2026-75156 Auth bypass in Apache Airflow FAB provider
Sources
Also known as CLEANSTART-2026-FC44731, GHSA-vj39-hwrh-p32g.