{"id":"CVE-2026-40963","aliases":["BIT-airflow-2026-40963","GHSA-gprj-xvq8-w53q","PYSEC-2026-2349"],"url":"https://o3.security/vulnerability/CVE-2026-40963","summary":"Apache Airflow: DAG authorization bypass on /ui/structure/structure_data","details":"The structure_data endpoint in the Airflow UI returned external dependency graph nodes for linked Dags without checking whether the caller had read permission on those linked Dags. An authenticated UI/API user authorized for one Dag could enumerate linked Dag IDs and dependency metadata for other Dags they were not authorized to read. Affects deployments that rely on per-Dag read scoping to keep Dag dependency topology private across teams. Users are advised to upgrade to `apache-airflow` 3.2.2 or later.","published":"2026-06-01T07:54:33.704Z","modified":"2026-08-12T03:51:48.290394605Z","cvss":{"score":3.1,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"},"epss":{"score":0.00477,"percentile":0.3914,"asOf":"2026-08-15"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"apache-airflow","fixedVersion":"3.2.2"}],"fix":{"url":"https://github.com/apache/airflow/pull/65342","label":"apache/airflow#65342"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/31/3"},{"type":"WEB","url":"https://pypi.python.org"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40963.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/s907bhsksc37m59f0loqjcp1ryobrr60"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40963"},{"type":"FIX","url":"https://github.com/apache/airflow/pull/65342"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:48.290394605Z"}}