{"affected":[{"defaultStatus":"unaffected","ecosystem":"pypi","packageName":"apache-airflow-core","product":"Apache Airflow","source":"CNA: apache","vendor":"Apache Software Foundation","versions":[{"lessThan":"3.2.2","status":"affected","version":"3.0.0","versionType":"semver"}]}],"cveId":"CVE-2026-40963","cwes":["CWE-285"],"description":"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.","epss":{"date":"2026-11-02","percentile":0.41192,"score":0.00477},"exploits":[],"kev":null,"metrics":[{"score":3.1,"severity":"low","source":"ADP: CISA-ADP","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}],"modifiedAt":1793688907626,"publishedAt":1780300473704,"references":[{"source":"CNA: apache","tags":["patch"],"url":"https://github.com/apache/airflow/pull/65342"},{"source":"CNA: apache","tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/s907bhsksc37m59f0loqjcp1ryobrr60"},{"source":"ADP: CVE","tags":[],"url":"http://www.openwall.com/lists/oss-security/2026/05/31/3"}],"remediation":[{"kind":"fix","source":"CNA: apache","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/apache/airflow/pull/65342"}],"revision":"259bf06c1736237060f80034c6b6ece9bdc2f69aa41dabc32be2840bc9b7e630","sources":[{"modifiedAt":1793688907626,"name":"CNA: apache","retrievedAt":1793689746924,"url":"https://www.cve.org/CVERecord?id=CVE-2026-40963"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793689757491,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-40963"}],"ssvc":{"assessedAt":1780323514255,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Apache Airflow: DAG authorization bypass on /ui/structure/structure_data","updatedAt":1793689757491}