PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-86462 Apache Software Foundation CVE debrief

CVE-2026-86462 debrief: Apache Airflow FAB provider vulnerability allows continued access after password change. The issue arises from the Admin user-edit PATCH endpoint not invalidating existing database-backed sessions when a user's password is changed. This affects deployments using the FAB auth manager with database-backed sessions. Administrators and users should assess exposure and prioritize upgrading to version 3.9.0 or later. The vulnerability allows an attacker with a valid session cookie to maintain access after a user's password is changed, potentially leading to unauthorized actions. A separate fix is required, independent of CVE-2026-82311. Upgrading to version 3.9.0,

Vendor
Apache Software Foundation
Product
Apache Airflow FAB provider
CVSS
CRITICAL 9.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-16
Original CVE updated
2026-09-18
Advisory published
2026-09-16
Advisory updated
2026-09-18

Who should care

Administrators and users of Apache Airflow deployments using the FAB auth manager with database-backed sessions should assess exposure and prioritize upgrading to version 3.9.0 or later.

Why it matters

CVE-2026-86462 allows attackers with valid session cookies to maintain access after a user's password change in Apache Airflow FAB provider, affecting deployments using FAB auth manager with database-backed sessions. Administrators and users should assess exposure and prioritize upgrading to version 3.9.0 or later.

  • Continued access for attackers with valid session cookies after password change
  • Potential for unauthorized actions by attackers with existing sessions
  • Need for session management review and updates
  • Priority for upgrading to fixed version 3.9.0 or later

Technical summary

The CVE-2026-86462 vulnerability in Apache Airflow FAB provider allows an attacker with a valid session cookie to maintain access after a user's password is changed. This affects deployments using the FAB auth manager with database-backed sessions. The issue is independent of CVE-2026-82311 and requires a separate fix. The vulnerability arises from the Admin user-edit PATCH endpoint not invalidating existing database-backed sessions when a user's password is changed. To address this, administrators should upgrade to version 3.9.0 or later and review session management practices.

Defensive priority

High

Recommended defensive actions

  • Upgrade to apache-airflow-providers-fab version 3.9.0 or later
  • Review and update affected deployments using FAB auth manager with database-backed sessions
  • Monitor for and address potential session management issues
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
  • Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and NVD entry provide details on the vulnerability in Apache Airflow FAB provider. The issue allows an attacker with a valid session cookie to maintain access after a user's password is changed. This affects deployments using the FAB auth manager with database-backed sessions. The vendor recommends upgrading to version 3.9.0 or later.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-86462 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-86462

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-86462 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-86462

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.