CVE-2026-33264
Apache Airflow: DAG author RCE on webserver via unrestricted import_string() in BaseSerialization.deserialize()
描述
A bug in `BaseSerialization.deserialize()` allowed unrestricted `import_string()` of attacker-controlled class paths when the Scheduler / API Server loaded a serialized DAG: a DAG author could embed a malicious trigger into a DAG to gain remote code execution on the API Server / Scheduler process, crossing the Airflow security boundary that DAG-author code must never execute in those processes. Users are advised to upgrade to `apache-airflow` 3.3.0 or later. As a defense-in-depth mitigation, deployments where DAG-author trust is limited can restrict the `[core] allowed_deserialization_classes` config to a narrow allowlist.
如何修補 CVE-2026-33264
要修補 CVE-2026-33264,請將受影響套件升級到下列已修補版本。
- —升級至 3.3.0 或更新版本
- —升級至 3.3.0 或更新版本
CVE-2026-33264 正在被利用嗎?
低 — EPSS 為 1.6%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 3.3.0
- from 0, < 3.3.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |