{"id":"PYSEC-2026-2349","summary":"Apache Airflow has an Improper Authorization issue","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.","aliases":["BIT-airflow-2026-40963","CVE-2026-40963","GHSA-gprj-xvq8-w53q"],"modified":"2026-07-13T16:42:37.909657923Z","published":"2026-07-13T15:35:22.767329Z","references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40963"},{"type":"WEB","url":"https://github.com/apache/airflow/pull/65342"},{"type":"PACKAGE","url":"https://github.com/apache/airflow"},{"type":"WEB","url":"https://lists.apache.org/thread/s907bhsksc37m59f0loqjcp1ryobrr60"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/31/3"},{"type":"PACKAGE","url":"https://pypi.org/project/apache-airflow"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-gprj-xvq8-w53q"}],"affected":[{"package":{"name":"apache-airflow","ecosystem":"PyPI","purl":"pkg:pypi/apache-airflow"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.2.2"}]}],"versions":["3.0.0","3.0.1","3.0.1rc1","3.0.2","3.0.2rc1","3.0.2rc2","3.0.3","3.0.3rc1","3.0.3rc2","3.0.3rc3","3.0.3rc4","3.0.3rc5","3.0.3rc6","3.0.4","3.0.4rc1","3.0.4rc2","3.0.5","3.0.5rc1","3.0.5rc2","3.0.5rc3","3.0.6","3.0.6rc1","3.0.6rc2","3.1.0","3.1.0b1","3.1.0b2","3.1.0rc1","3.1.0rc2","3.1.1","3.1.1rc1","3.1.1rc2","3.1.2","3.1.2rc1","3.1.2rc2","3.1.3","3.1.3rc1","3.1.4","3.1.4rc1","3.1.4rc2","3.1.5","3.1.5rc1","3.1.6","3.1.6rc1","3.1.7","3.1.7rc1","3.1.7rc2","3.1.8","3.1.8rc1","3.1.8rc2","3.2.0","3.2.0b1","3.2.0b2","3.2.0rc1","3.2.0rc2","3.2.1","3.2.1rc1","3.2.1rc2","3.2.1rc3","3.2.2rc1","3.2.2rc2","3.2.2rc3"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/apache-airflow/PYSEC-2026-2349.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}