CVE-2026-82310 Apache Airflow FAB provider - Authentication Bypass

Apache Airflow FAB provider in versions before 3.9.0 contains a broken authentication caused by continued acceptance of unexpired tokens for deactivated user accounts in the Core API, letting attackers with valid tokens maintain role-scoped access indefinitely after account deactivation, exploit requires administrative deactivation of the user account.

CVSS base score 7.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
1.00% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published
16 September 2026
Updated
15 October 2026
Weakness
CWE-613

Vendor fix

Upgrade to apache-airflow-providers-fab version 3.9.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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