CVE-2026-45360 (GCVE-0-2026-45360)
Vulnerability from cvelistv5 – Published: 2026-06-01 07:48 – Updated: 2026-06-02 15:48
VLAI
EPSS
VEX
Title
Apache Airflow: Arbitrary import in custom deadline-reference deserialization
Summary
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
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 15:48 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Apache Software Foundation | Apache Airflow |
Affected:
0 , < 3.2.2
(semver)
|
guessed |
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