CVE-2026-48726 Apache Airflow: revoke_token() unreachable in FabAuthManager / KeycloakAuthManager logout path
Attackers can reuse JWTs after logout in specific Airflow auth managers, maintaining unauthorized access until token expiry.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-48726?
CVE-2026-48726 is a medium-severity authentication bypass vulnerability in Apache Airflow, published on 1 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A bug in Apache Airflow's auth manager logout handling left previously-issued JWT tokens valid after the user clicked logout in the UI: the logout flow for `FabAuthManager` and `KeycloakAuthManager` did not actually reach the underlying `revoke_token()` call, so the JWT remained accepted by the API server until its natural expiry. An attacker holding a previously-issued JWT for a logged-out user could continue to make authenticated API calls as that user. Affects deployments configured with `FabAuthManager` or `KeycloakAuthManager` (the bug does not affect SimpleAuthManager). This is a residual gap in the fix for CVE-2025-57735, which addressed cookie-side invalidation in PR #57992 / PR #61339 but did not cover the provider-side `revoke_token()` reachability in the FAB / Keycloak code paths. Users who already upgraded for CVE-2025-57735 should additionally upgrade to `apache-airflow` 3.2.2 or later to cover the FAB / Keycloak logout paths.
Weakness: CWE-613
Which versions are affected by CVE-2026-48726?
4 open source packages ship an affected version, including apache-airflow and airflow. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
apache-airflow PyPI | All versions | 3.2.2 |
apache-airflow PyPI | All versions | 3.2.2 |
apache-airflow PyPI | All versions | 3.2.2 |
airflow Bitnami | All versions | 3.2.2 |
Products include Apache Airflow.
How do I fix CVE-2026-48726?
Upgrade apache-airflow to 3.2.2 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-48726 being exploited?
There is no known exploitation of CVE-2026-48726 in the wild and no public exploit code.
Other vulnerabilities in Apache Airflow
- CVE-2020-13927 Apache Airflow's Experimental API Authentication Bypass
- CVE-2020-11978 Apache Airflow Command Injection
- CVE-2026-33264 Apache Airflow: DAG author RCE on webserver via unrestricted import_string() in BaseSerialization.deserialize()
- CVE-2023-25754 Apache Airflow: Privilege escalation using airflow logs
- CVE-2023-22884 Apache Airflow, Apache Airflow MySQL Provider: Arbitrary file read via MySQL provider in Apache Airflow
Sources
Also known as BIT-airflow-2026-48726, ECHO-2c90-87c7-3df1, GHSA-vr7m-c6v4-8cx8, MINI-h3mf-hg79-vj29, MINI-xg49-79hg-fgcm, PYSEC-2026-187.