{"id":"CVE-2026-40948","aliases":["GHSA-5w6h-pjw6-wvc6","PYSEC-2026-2369"],"url":"https://o3.security/vulnerability/CVE-2026-40948","summary":"Apache Airflow Providers Keycloak: OAuth Login CSRF — Missing State Parameter in Keycloak Auth Manager","details":"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.","published":"2026-04-18T13:22:41.577Z","modified":"2026-08-07T11:50:17.750981673Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"apache-airflow-providers-keycloak","fixedVersion":"0.7.0"}],"fix":{"url":"https://github.com/apache/airflow/pull/64114","label":"apache/airflow#64114"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/04/17/14"},{"type":"WEB","url":"https://pypi.python.org"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40948.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/kc0odpr70hbqhdb9ksnz42fkqz2xld9q"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40948"},{"type":"FIX","url":"https://github.com/apache/airflow/pull/64114"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:50:17.750981673Z"}}