{"id":"CVE-2026-40961","summary":"Apache Airflow: Open Redirect Bypass Vulnerability","details":"A bug in the login redirect route in Apache Airflow allowed authenticated users to craft URLs that bypassed the `is_safe_url` check, enabling redirection from a trusted Airflow domain to an attacker-controlled origin. Users are advised to upgrade to `apache-airflow` 3.2.2 or later. As a defense-in-depth mitigation, deployment operators can place Airflow behind a reverse proxy that strips off-domain `next=` query parameters before they reach the login endpoint.","aliases":["BIT-airflow-2026-40961","GHSA-6hcw-qqr8-pjj8","PYSEC-2026-2345"],"modified":"2026-08-12T03:51:23.914519576Z","published":"2026-06-01T07:55:04.647Z","database_specific":{"cna_assigner":"apache","cwe_ids":["CWE-601"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40961.json"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/31/2"},{"type":"WEB","url":"https://pypi.python.org"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40961.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/qmt8ksh7gty6b8hr9w294t94j36jdv1q"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40961"},{"type":"FIX","url":"https://github.com/apache/airflow/pull/65557"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/airflow","events":[{"introduced":"1fc3442f1307fdf5e1221b26f41266c4fed330d3"},{"fixed":"21cbbf663b140f4a84cf123acb90328a6a4d30f5"}],"database_specific":{"cpe":"cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.0.0"},{"fixed":"3.2.2"}],"source":["AFFECTED_FIELD","CPE_RANGE"]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40961.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"}]}