Intadd

**Name of the Vulnerable Software and Affected Versions** apache-airflow versions prior to 3.3.0 **Description** A bug in the `BaseSerialization.deserialize()` function allows unrestricted `import string()` of attacker-controlled class paths when the Scheduler or API Server loads a serialized DAG. A DAG author can embed a malicious trigger into a DAG to achieve remote code execution on the API Server or Scheduler process, bypassing the security boundary that prevents DAG-author code from executing within those processes. **Recommendations** Upgrade to apache-airflow version 3.3.0 or later. Restrict the `[core] allowed deserialization classes` configuration to a narrow allowlist in deployments where trust in DAG authors is limited.