CVE-2026-86462: Apache Airflow FAB provider · Insufficient Session Expiration
Affects Apache Airflow FAB providerSource CVE Database V5
Mentioned vulnerabilities
Not known to be exploited · CVSS 9.1 Critical : upgrade to 3.9.0 as a priority.
Data as of 31 Oct 2026, 08:20 UTC
- EPSS
- 0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.9.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 16 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade Apache Airflow FAB provider and apache-airflow-providers-fab to 3.9.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apache Software FoundationApache Airflow FAB provider | Affected
| Fixed in
|
PyPIapache-airflow-providers-fabpkg:pypi/apache-airflow-providers-fabOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should upgrade apache-airflow-providers-fab to version 3.9.0 or later, which contains the fix for this vulnerability. Deployments that have already applied the fix for CVE-2026-82311 must also upgrade to address this independent session invalidation issue. No other mitigation is indicated by the vendor advisory.
Description
Apache Airflow FAB provider versions 3.2.0 through 3.8.x have a vulnerability where changing a user's password via the Admin user-edit PATCH endpoint does not invalidate existing database-backed sessions. This allows an attacker with a stolen session cookie to maintain access even after the password is changed. The issue affects deployments using the FAB auth manager with database-backed sessions and requires no attacker interaction with the password change endpoint. The vulnerability is fixed in version 3.9.0 and later.