CVE-2026-86462

Apache Airflow FAB provider: FAB Admin password PATCH does not invalidate database-backed sessions

Published Sep 16, 2026 CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Description
Apache Airflow FAB provider: changing a user's password through the Admin user-edit PATCH endpoint does not invalidate that user's existing database-backed sessions. An attacker who already holds a copy of the victim's session cookie keeps full access as that user after the password change, so the password reset does not evict them. Affects deployments using the FAB auth manager with database-backed sessions; an administrator (or the user themselves) performing a routine password change is the trigger, and no attacker interaction with the endpoint is needed.

This is a second, independent route to the outcome addressed by CVE-2026-82311, which corrected an identifier comparison in the session-invalidation helper. That fix does not repair this endpoint, because the PATCH path never calls the helper at all. Deployments that applied the CVE-2026-82311 fix must also upgrade for this one.

Users of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which fixes the issue.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

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History
Type Values Removed Values Added
First Time appeared Apache apache-airflow-providers-fab
CPEs cpe:2.3:a:apache:apache-airflow-providers-fab:*:*:*:*:*:*:*:*
Vendors & Products Apache apache-airflow-providers-fab
Type Values Removed Values Added
First Time appeared Apache
Apache airflow Fab Provider
Vendors & Products Apache
Apache airflow Fab Provider
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Apache Airflow FAB provider: changing a user's password through the Admin user-edit PATCH endpoint does not invalidate that user's existing database-backed sessions. An attacker who already holds a copy of the victim's session cookie keeps full access as that user after the password change, so the password reset does not evict them. Affects deployments using the FAB auth manager with database-backed sessions; an administrator (or the user themselves) performing a routine password change is the trigger, and no attacker interaction with the endpoint is needed. This is a second, independent route to the outcome addressed by CVE-2026-82311, which corrected an identifier comparison in the session-invalidation helper. That fix does not repair this endpoint, because the PATCH path never calls the helper at all. Deployments that applied the CVE-2026-82311 fix must also upgrade for this one. Users of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which fixes the issue.
Title Apache Airflow FAB provider: FAB Admin password PATCH does not invalidate database-backed sessions
Weaknesses CWE-613
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Sep 17, 2026, 7:24 PM
Reserved
Sep 7, 2026, 2:15 PM
Status
Analyzed
Published
Sep 16, 2026, 9:17 AM
Modified
Sep 18, 2026, 2:29 PM