Severity: low Affected versions:
- Apache Airflow Keycloak Provider (apache-airflow-providers-keycloak) 0.0.1 before 0.7.0 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. Credit: Haruki Oyama (Waseda University) (finder) Aritra Basu (remediation developer) References: https://github.com/apache/airflow/pull/64114 https://airflow.apache.org/ https://www.cve.org/CVERecord?id=CVE-2026-40948
