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Advisory severityCritical9.1Apache Software Foundation

Critical [CVE-2026-82311 +1] 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

This critical-severity Apache Software Foundation advisory covers CVE-2026-86462 and CVE-2026-82311; related products: Apache Airflow FAB.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations. This bulletin covers 2 CVEs; its score, affected versions and guidance may apply to different issues within that bulletin.

CVE-2026-86462 Source published Source updated

VulniPulse record published Record updated

CVE-2026-82311CVE-2026-86462
Related products & platforms
Apache Software FoundationAirflow
Open source advisory

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Summary

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.

Affected versions
  • Apache Airflow FAB provider 3.2.0 before 3.9.0

Official advisory · high-confidence parse· fetched 20 days ago·verify at source

Fixed versions
  • 3.9.0

Official advisory · high-confidence parse· fetched 20 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • 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.
  • 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.

Official advisory · high-confidence parse· fetched 20 days ago·verify at source

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