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Message-ID: <1a91aaf9-b571-40c1-1a8c-081e1bda9612@apache.org>
Date: Sun, 31 May 2026 11:39:07 +0000
From: Rahul Vats <rahulvats@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-40963: Apache Airflow: DAG authorization bypass on
/ui/structure/structure_data
Severity: low
Affected versions:
- Apache Airflow (apache-airflow) 3.0.0 before 3.2.2
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.
Credit:
Masamune - Unit515 OPSWAT (finder)
Jarek Potiuk (remediation developer)
References:
https://github.com/apache/airflow/pull/65342
https://airflow.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-40963
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