CVE-2026-40963

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.

PUBLISHED Reserved 2026-04-16 | Published 2026-06-01 | Updated 2026-06-01 | Assigner apache

Problem types

CWE-285: Improper Authorization

Product status

Credits

Masamune - Unit515 OPSWAT finder

Jarek Potiuk remediation developer

References

www.openwall.com/lists/oss-security/2026/05/31/3

github.com/apache/airflow/pull/65342 patch

lists.apache.org/thread/s907bhsksc37m59f0loqjcp1ryobrr60 vendor-advisory

cve.org (CVE-2026-40963)

nvd.nist.gov (CVE-2026-40963)

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