CVE-2026-34538
Apache Airflow: Authorization bypass in DagRun wait endpoint (XCom exposure)
描述
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.
如何修補 CVE-2026-34538
要修補 CVE-2026-34538,請將受影響套件升級到下列已修補版本。
- —升級至 3.2.0 或更新版本
- —升級至 3.2.0 或更新版本
- —升級至 3.2.0 或更新版本
CVE-2026-34538 正在被利用嗎?
低 — EPSS 為 0.7%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- >= 3.0.0, < 3.2.0
- >= 3.0.0, < 3.2.0
- >= 3.0.0, < 3.2.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |