Apache Airflow has an authorization bypass in DagRun wait endpoint
Apache Airflow versions 3.0.0 through 3.1.8 DagRun wait endpoint returns XCom result values even to users who only have DAG Run read permissions, such as the Viewer role.This behavior conflicts with the FAB RBAC model, which treats XCom as a separate protected resource, and with the security model documentation that defines the Viewer role as read-only.
Airflow uses the FAB Auth Manager to manage access control on a per-resource basis. The Viewer role is intended to be read-only by default, and the security model documentation defines Viewer users as those who can inspect DAGs without accessing sensitive execution results.
Users are recommended to upgrade to Apache Airflow 3.2.0 which resolves this issue.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Python (PyPI) | apache-airflow | >= 3.0.0, < 3.2.0 | 3.2.0 |
Referencias
- http://www.openwall.com/lists/oss-security/2026/04/09/9
- https://lists.apache.org/thread/9mq3msqhmgjwdzbr6bgthj4brb3oz9fl
- https://github.com/apache/airflow/pull/64415
- https://github.com/advisories/GHSA-r7vr-m4jw-r794
- https://nvd.nist.gov/vuln/detail/CVE-2026-34538
- https://github.com/apache/airflow
- https://github.com/apache/airflow/releases/tag/3.2.0
- https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-21.yaml
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Debilidad (CWE)
CWE-668- Plataforma
- Python (PyPI)
- Paquete
apache-airflow- Publicada
- 09.04.2026
- Actualizado
- 11.10.2026 15:17
Fuentes y licencias
OSV / GitHub Advisory Database - PYSEC-2026-21 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-r7vr-m4jw-r794 - 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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