{"cve":"CVE-2026-40963","nvd":{"published":"2026-06-01T09:16:18.123","modified":"2026-07-21T19:10:00.107","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","score":3.1},"cwes":["CWE-285"],"references":["https://github.com/apache/airflow/pull/65342","https://lists.apache.org/thread/s907bhsksc37m59f0loqjcp1ryobrr60","http://www.openwall.com/lists/oss-security/2026/05/31/3"],"products":["apache:airflow"],"source":"nvd","synced_at":"2026-10-19T22:37:48.043517290+00:00"},"epss":{"cve":"CVE-2026-40963","score":0.00477,"percentile":0.41212,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-gprj-xvq8-w53q","url":"https://osv.dev/vulnerability/GHSA-gprj-xvq8-w53q","summary":"Apache Airflow has an Improper Authorization issue","modified":"2026-07-13T16:42:37.909657923Z","packages":[{"ecosystem":"PyPI","name":"apache-airflow","purl":"pkg:pypi/apache-airflow","ranges":[">=3.0.0 <3.2.2"],"fixed":["3.2.2"]}]},{"id":"PYSEC-2026-2349","url":"https://osv.dev/vulnerability/PYSEC-2026-2349","summary":"Apache Airflow has an Improper Authorization issue","modified":"2026-07-13T16:42:37.909657923Z","packages":[{"ecosystem":"PyPI","name":"apache-airflow","purl":"pkg:pypi/apache-airflow","ranges":[">=3.0.0 <3.2.2"],"fixed":["3.2.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}