CVE-2026-86462
Apache Airflow FAB provider: FAB Admin password PATCH does not invalidate database-backed sessions
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.
INFO
Published Date :
Sept. 16, 2026, 9:17 a.m.
Last Modified :
Sept. 18, 2026, 2:29 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Upgrade apache-airflow-providers-fab to version 3.9.0 or later.
- Ensure FAB auth manager uses database-backed sessions.
- Invalidate existing sessions after password change.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-86462.
| URL | Resource |
|---|---|
| https://github.com/apache/airflow/pull/72657 | Patch Vendor Advisory |
| https://lists.apache.org/thread/7sr4sggfv5fhhl3qgphcq0rlhg81do1s | Mailing List Vendor Advisory |
| https://lists.apache.org/thread/[email protected] | Vendor Advisory |
| https://www.cve.org/CVERecord?id=CVE-2026-82311 | US Government Resource |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-86462 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-86462
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-86462 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-86462 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 18, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:apache:apache-airflow-providers-fab:*:*:*:*:*:*:*:* versions from (including) 3.2.0 up to (excluding) 3.9.0 Added Reference Type Apache Software Foundation: https://github.com/apache/airflow/pull/72657 Types: Patch, Vendor Advisory Added Reference Type Apache Software Foundation: https://lists.apache.org/thread/7sr4sggfv5fhhl3qgphcq0rlhg81do1s Types: Mailing List, Vendor Advisory Added Reference Type Apache Software Foundation: https://lists.apache.org/thread/[email protected] Types: Vendor Advisory Added Reference Type Apache Software Foundation: https://www.cve.org/CVERecord?id=CVE-2026-82311 Types: US Government Resource Changed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://www.cve.org/CVERecord?id=CVE-2026-82311 Types: Not Applicable nvd-ai-agent-0.3.0-gemma-4-31B-it: https://www.cve.org/CVERecord?id=CVE-2026-82311 Types: Not Applicable, US Government Resource -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 17, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Added SSVC {'id': 'CVE-2026-86462', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-17T19:24:26.346666Z'} -
CVE Modified by [email protected]
Sep. 16, 2026
Action Type Old Value New Value Added Reference https://lists.apache.org/thread/[email protected] -
New CVE Received by [email protected]
Sep. 16, 2026
Action Type Old Value New Value 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. Added CWE CWE-613 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/86xxx/CVE-2026-86462.json">CVE-2026-86462</a> Added Reference https://github.com/apache/airflow/pull/72657 Added Reference https://lists.apache.org/thread/7sr4sggfv5fhhl3qgphcq0rlhg81do1s Added Reference https://www.cve.org/CVERecord?id=CVE-2026-82311