CVE-2026-49296: Apache Airflow

Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Before apache-airflow 3.3.0, a user authorized to read one Dag could disclose the source of other Dags co-located in the same source file. `GET /api/v2/dagSources/{dag_id}` — and the equivalent Dag-source view in the UI — returned the entire source file without redacting Dags the caller was not authorized to read, bypassing per-DAG read authorization. Deployments that co-locate multiple Dags in a single file and rely on per-DAG access control to limit source visibility are affected; single-Dag-per-file deployments are not. Upgrade to apache-airflow 3.3.0 or later.

Affected products

• Apache Airflow: before 3.3.0 (fixed in 3.3.0)

Published 2026-07-07. Last modified 2026-09-16.