{"id":"CVE-2026-40948","aliases":["EUVD-2026-23676","GHSA-5w6h-pjw6-wvc6","PYSEC-2026-2369"],"status":"published","title":"Apache Airflow Providers Keycloak: OAuth Login CSRF — Missing State Parameter in Keycloak Auth Manager","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.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00404,"percentile":0.34982,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-352"],"published":"2026-04-18T13:22:41Z","modified":"2026-10-28T02:30:23Z","fixes":[{"ecosystem":"PyPI","package":"apache-airflow-providers-keycloak","fixed_in":["0.7.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"apache-airflow-providers-keycloak","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.0.1"},{"fixed":"0.7.0"}]}]},{"source":"osv","ecosystem":"PyPI","package":"apache-airflow-providers-keycloak","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.0.1"},{"fixed":"0.7.0"}]}],"versions":["0.0.1","0.1.0","0.1.0rc1","0.2.0","0.2.0rc1","0.3.0","0.3.0rc1","0.4.0","0.4.0rc1","0.4.1","0.4.1rc1","0.5.0","0.5.0rc1","0.5.1","0.5.1rc1","0.5.2","0.5.2rc1","0.5.3","0.5.3rc1","0.6.0","0.6.0rc1","0.7.0rc1"]},{"source":"osv","ecosystem":"PyPI","package":"apache-airflow-providers-keycloak","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.0.1"},{"fixed":"0.7.0"}]}],"versions":["0.0.1","0.1.0","0.1.0rc1","0.2.0","0.2.0rc1","0.3.0","0.3.0rc1","0.4.0","0.4.0rc1","0.4.1","0.4.1rc1","0.5.0","0.5.0rc1","0.5.1","0.5.1rc1","0.5.2","0.5.2rc1","0.5.3","0.5.3rc1","0.6.0","0.6.0rc1","0.7.0rc1"]}],"products":[{"vendor":"apache","product":"apache-airflow-providers-keycloak"},{"vendor":"apache software foundation","product":"apache airflow providers keycloak"}],"references":[{"url":"https://github.com/apache/airflow/pull/64114","tags":["patch","Issue Tracking","Patch","fix","web"]},{"url":"https://lists.apache.org/thread/kc0odpr70hbqhdb9ksnz42fkqz2xld9q","tags":["vendor-advisory","Mailing List","Vendor Advisory","advisory","web"]},{"url":"http://www.openwall.com/lists/oss-security/2026/04/17/14","tags":["Mailing List","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40948","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5w6h-pjw6-wvc6","tags":["advisory"]},{"url":"https://pypi.python.org","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40948.json","tags":["advisory"]},{"url":"https://github.com/apache/airflow","tags":["package"]},{"url":"https://pypi.org/project/apache-airflow-providers-keycloak","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-40948","title":"Apache Airflow Providers Keycloak: OAuth Login CSRF — Missing State Parameter in Keycloak Auth Manager","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.","status":"published","published":"2026-04-18T13:22:41.577Z","modified":"2026-04-20T16:17:53.543Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T13:43:00.288193Z"}],"euvd":[{"id":"EUVD-2026-23676","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.","status":"published","published":"2026-04-18T13:22:41Z","modified":"2026-04-20T16:17:53Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:24:22.446697Z"}],"ghsa":[{"id":"GHSA-5w6h-pjw6-wvc6","title":"apache-airflow-providers-keycloak: Missing OAuth 2.0 State and PKCE Enables Login CSRF and Session Fixation","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.","status":"published","published":"2026-04-18T15:34:15Z","modified":"2026-04-22T17:36:41Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:39:56.453138Z"}],"nvd":[{"id":"CVE-2026-40948","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.","status":"published","published":"2026-04-18T14:16:10.897Z","modified":"2026-10-25T23:10:00.167Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:12:15.120927Z"}],"osv":[{"id":"CVE-2026-40948","title":"Apache Airflow Providers Keycloak: OAuth Login CSRF — Missing State Parameter in Keycloak Auth Manager","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.","status":"published","published":"2026-04-18T13:22:41.577Z","modified":"2026-10-28T02:30:23.018414558Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:45:03.424067Z"},{"id":"GHSA-5w6h-pjw6-wvc6","title":"apache-airflow-providers-keycloak: Missing OAuth 2.0 State and PKCE Enables Login CSRF and Session Fixation","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.","status":"published","published":"2026-04-18T15:34:15Z","modified":"2026-07-13T16:42:48.722973213Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:46:38.911014Z"},{"id":"PYSEC-2026-2369","title":"apache-airflow-providers-keycloak: Missing OAuth 2.0 State and PKCE Enables Login CSRF and Session Fixation","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.","status":"published","published":"2026-07-13T15:02:51.078279Z","modified":"2026-07-13T16:31:28.985950984Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:52:55.961245Z"}]}}