CVE-2026-40963
Last modified
CVE-2026-40963 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. 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. EPSS estimates a 0.46% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Airflow | >= 3.0.0, < 3.2.2 |
References
- https://github.com/apache/airflow/pull/65342Issue Tracking, Patch
- https://lists.apache.org/thread/s907bhsksc37m59f0loqjcp1ryobrr60Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/05/31/3Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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