Description
The Keycloak authentication manager in `apache-airflow-providers-keycloak` did not generate or validate the OAuth 2.0 `state` parameter on the login / login-callback flow, and did not use PKCE. An attacker with a Keycloak account in the same realm could deliver a crafted callback URL to a victim’s browser and cause the victim to be logged into the attacker’s Airflow session (login-CSRF / session fixation), where any credentials the victim subsequently stored in Airflow Connections would be harvestable by the attacker. Users are advised to upgrade `apache-airflow-providers-keycloak` to 0.7.0 or later.
Problem types
CWE-352: Cross-Site Request Forgery (CSRF)
Product status
0.0.1 (semver) before 0.7.0
Credits
Haruki Oyama (Waseda University)
References
www.openwall.com/lists/oss-security/2026/04/17/14
github.com/apache/airflow/pull/64114
lists.apache.org/thread/kc0odpr70hbqhdb9ksnz42fkqz2xld9q
