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CVE-2026-33264 A bug in `BaseSerialization.deserialize()` allowed unrestricted `import_string()` of attacker-controlled class paths…
Description
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.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Apache Airflow 3.0 | 3.0.0 → < 3.3.0 | 3.3.0 |
Références
- github.com github.com
- github.com github.com
- lists.apache.org lists.apache.org
Chronologie
- Publiée
- Dernière modification
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