CVE-2026-40963 Details
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.
A vulnerability exists in the Apache Airflow UI structure_data endpoint, where it improperly handles authorization for external dependency graph nodes linked to other Directed Acyclic Graphs (DAGs). This flaw allows an authenticated user with access to one DAG to enumerate linked DAG IDs and dependency metadata from other DAGs they do not have permission to read. The issue affects Airflow versions 3.0.0 prior to 3.2.2 and impacts deployments that use per-DAG read permissions to maintain DAG dependency privacy across teams.
Users are advised to upgrade to Apache Airflow version 3.2.2 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 1, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/05/31/3 | CVE | Mailing ListThird Party Advisory |
| https://github.com/apache/airflow/pull/65342 | [email protected] | Issue TrackingPatch |
| https://lists.apache.org/thread/s907bhsksc37m59f0loqjcp1ryobrr60 | [email protected] | Mailing ListVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-285 | Improper Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| apache airflow | >= 3.0.0, < 3.2.2 |
CPE
Remediation
| |
Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 21, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 1, 2026 | Initial Analysis | [email protected] |
| Jun 1, 2026 | CVE Modified | CISA-ADP |
| Jun 1, 2026 | CVE Modified | CVE |
| Jun 1, 2026 | New CVE Received | [email protected] |