---
id: CVE-2026-82310
title: >-
  Apache Airflow FAB provider: deactivating a user account does not stop tokens
  issued to that account before deactivation
summary: >-
  Apache Airflow FAB provider: deactivating a user account does not stop tokens
  issued to that account before deactivation. Password authentication correctly
  rejects the disabled account, but the Core API continues to accept an
  existing, u…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-613
vendor: apache
product: apache-airflow-providers-fab
affected:
  - 'apache-airflow-providers-fab >= 2.0.0, < 3.9.0'
patched:
  - apache-airflow-providers-fab 3.9.0
published: '2026-09-16'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T14:28:10.570'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82310'
references:
  - url: 'https://github.com/apache/airflow/pull/72199'
    label: security@apache.org
  - url: 'https://lists.apache.org/thread/85h9r50bmy8vgkgr5nyddryj1p5pxxy2'
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread/85h9r50bmy8vgkgr5nyddryj1p5pxxy2?users@airflow.apache.org
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/09/15/10'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - cve.org
epss: 0.01004
epssPercentile: 0.61415
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-17T19:23:27.962760Z'
ingestedAt: '2026-09-16T09:53:11.606Z'
---

## Overview

Apache Airflow FAB provider: deactivating a user account does not stop tokens issued to that account before deactivation. Password authentication correctly rejects the disabled account, but the Core API continues to accept an existing, unexpired token naming it, and lets that token mint a replacement — so the account keeps its role-scoped access indefinitely after an administrator has disabled it. The user replays their own legitimate credential; no signature forgery or privilege escalation is involved, and the access stays within the roles the account already held.

Affects deployments using Airflow 3 with the FAB auth manager and Core API token authentication, where an administrator deactivates an account whose row remains in the database and whose previously issued token has not expired. The trigger is administrative deactivation as a containment action, which silently fails to contain.

Users of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which rejects tokens naming a deactivated account.

## Affected

- `apache-airflow-providers-fab >= 2.0.0, < 3.9.0`

## Remediation

Upgrade past the affected range:

- `apache-airflow-providers-fab 3.9.0`