CVE-2026-82310

Vulnerability 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.

CVSS Score

Affected Products

Related Weaknesses (CWE)

References

• https://github.com/apache/airflow/pull/72199PatchVendor Advisory
• https://lists.apache.org/thread/85h9r50bmy8vgkgr5nyddryj1p5pxxy2Mailing ListVendor Advisory
• https://lists.apache.org/thread/[email protected]Mailing ListVendor Advisory
• http://www.openwall.com/lists/oss-security/2026/09/15/10Mailing List