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CVE

CVE-2026-86462

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

CVE-2026-86462

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

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
C
H
U
9.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Related Resources

No items found.

References

https://pypi.python.org, https://www.cve.org/CVERecord?id=CVE-2026-82311, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86462.json, https://lists.apache.org/thread/7sr4sggfv5fhhl3qgphcq0rlhg81do1s, https://lists.apache.org/thread/7sr4sggfv5fhhl3qgphcq0rlhg81do1s?users@airflow.apache.org, https://nvd.nist.gov/vuln/detail/CVE-2026-86462, https://github.com/apache/airflow/pull/72657

Severity

9.1

CVSS Score
0
10

Basic Information

Base CVSS
9.1
EPSS Probability
0.00828%
EPSS Percentile
0.56303%
Introduced Version
37069948c093e4b6720ec4821ff0ed7d6c069935,3.2.0rc1
Fix Available
bfb054e9e867b8b9a6a449e43bfba97f645e025e,3.9.0rc1

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