Insufficient Session Expiration in Apache Airflow - CVE-2026-86473
Published: September 22, 2026
Vulnerability identifier: #VU151541
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-86473
CWE-ID: CWE-613
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to retain access using a valid bearer token after logout.
The vulnerability exists due to improper session invalidation in the Core API logout endpoint when processing a logout request with a bearer token in the Authorization header. A remote user can present a copied valid bearer token after the victim logs out to retain access using a valid bearer token after logout.
The default token lifetime is 24 hours and is configurable.
Affected software
Apache Airflow
How to mitigate CVE-2026-86473
Install security update from vendor's website.
Apache Airflow - update to 3.3.2