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
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.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Python (PyPI) | apache-airflow | < 3.3.0 | 3.3.0 |
Referencias
- https://nvd.nist.gov/vuln/detail/CVE-2026-33264
- https://github.com/apache/airflow/pull/66002
- https://github.com/apache/airflow/pull/68528
- https://github.com/apache/airflow/commit/69b6c54ef17b048ebb0e9a656d0d9e1c99480d6b
- https://github.com/apache/airflow/commit/7e9bdb245e09373d91fcb7bda575ad4be63aa28d
- https://github.com/apache/airflow
- https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-2082.yaml
- https://lists.apache.org/thread/otvdw8qt2y7xy2n5nq9xby9ky4rf5ltj
- http://www.openwall.com/lists/oss-security/2026/07/07/1
- https://github.com/advisories/GHSA-2943-9672-r45w
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Debilidad (CWE)
CWE-502- Plataforma
- Python (PyPI)
- Paquete
apache-airflow- Publicada
- 07.07.2026
- Actualizado
- 11.10.2026 15:18
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-2943-9672-r45w - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-2082 - PyPA Advisory Database; CC BY 4.0
Historial de vulnerabilidades: apache-airflow
Todas las vulnerabilidades publicadas de este paquete (Python (PyPI)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 158
- Primera → última
- 08.2018 09.2026
- Sin corrección
- 4
- Explotada en ataques
- 2
Distribución por gravedad
- Crítica 16
- Alta 49
- Media 86
- Baja 7
Divulgaciones por año
- 2018: 1
- 2019: 8
- 2020: 12
- 2021: 5
- 2022: 16
- 2023: 31
- 2024: 18
- 2025: 6
- 2026: 61
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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 esta entrada
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