CVE-2026-45360 - Apache Airflow: Arbitrary import in custom deadline-reference deserialization

CVE-2026-45360 - Apache Airflow: Arbitrary import in custom deadline-reference deserialization

https://cvefeed.io/rssfeed/latest.atom / Mon, 06/01/2026 - 14:26
CVE ID :CVE-2026-45360
Published : June 1, 2026, 9:16 a.m. | 1 hour, 46 minutes ago
Description :Apache Airflow's scheduler-side deadline-reference decoder (`SerializedCustomReference.deserialize_reference`) imported and dispatched arbitrary class paths drawn from DAG-author-controlled serialized state without an allowlist or plugin-registry gate. A DAG author whose code reaches the scheduler — the default on single-host deployments where the DAG bundle is importable from the scheduler process — could embed a custom `DeadlineReference` whose serialized form named an attacker-controlled module path, causing the scheduler to `import_string(...)` and instantiate that class with a live SQLAlchemy session attached. Affects deployments where DAG-author code is less trusted than the scheduler process. Users are advised to upgrade to `apache-airflow` 3.2.2 or later.
Severity: 0.0 | NA
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