Airflow uses the FAB Auth Manager to manage access control on a per-resource basis. The Viewer role is intended to be read-only by default, and the security model documentation defines Viewer users as those who can inspect DAGs without accessing sensitive execution results.
Users are recommended to upgrade to Apache Airflow 3.2.0 which resolves this issue.
Metrics
Affected Vendors & Products
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-r7vr-m4jw-r794 | Apache Airflow has an authorization bypass in DagRun wait endpoint |
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Fri, 10 Apr 2026 09:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Apache
Apache airflow |
|
| Vendors & Products |
Apache
Apache airflow |
Thu, 09 Apr 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
|
Thu, 09 Apr 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Thu, 09 Apr 2026 09:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Apache Airflow versions 3.0.0 through 3.1.8 DagRun wait endpoint returns XCom result values even to users who only have DAG Run read permissions, such as the Viewer role.This behavior conflicts with the FAB RBAC model, which treats XCom as a separate protected resource, and with the security model documentation that defines the Viewer role as read-only. Airflow uses the FAB Auth Manager to manage access control on a per-resource basis. The Viewer role is intended to be read-only by default, and the security model documentation defines Viewer users as those who can inspect DAGs without accessing sensitive execution results. Users are recommended to upgrade to Apache Airflow 3.2.0 which resolves this issue. | |
| Title | Apache Airflow: Authorization bypass in DagRun wait endpoint (XCom exposure) | |
| Weaknesses | CWE-668 | |
| References |
|
Projects
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-04-09T14:06:21.963Z
Reserved: 2026-03-30T16:07:03.425Z
Link: CVE-2026-34538
Updated: 2026-04-09T11:21:33.223Z
Status : Received
Published: 2026-04-09T10:16:22.407
Modified: 2026-04-09T15:16:10.563
Link: CVE-2026-34538
No data.
OpenCVE Enrichment
Updated: 2026-04-10T09:33:04Z
Github GHSA