CVE-2026-40963

CVE-2026-40963: Apache Airflow: DAG authorization bypass on /ui/structure/structure_data

Vendor Apache Software Foundation
Product Apache Airflow
Weakness CWE-285
Published June 1, 2026
Last update June 1, 2026

CVSS base score

What the vulnerability does

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.

Key dates

Disclosure timeline

June 1, 2026 CVE published
June 1, 2026 Record updated