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CVE-2026-40963

Apache Airflow: DAG authorization bypass on /ui/structure/structure_data

Published: Jun 1, 2026Updated: Jun 1, 2026 Sources: CVE List NVD
NVD MITRE
3.1CVSS
LOW

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.

EPSS Score
0.0%
Top 96.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None

Weaknesses

CWE-285

Affected Products

Apache Airflow
Apache Software Foundation

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://github.com/apache/airflow/pull/65342
github.com
https://lists.apache.org/thread/s907bhsksc37m59f0loqjcp1ryobrr60
lists.apache.org
http://www.openwall.com/lists/oss-security/2026/05/31/3
openwall.com

Timeline

Published
Jun 1, 2026
Last Updated
Jun 1, 2026

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