CVE-2026-75158: Apache Airflow

Medium severity, CVSS 4.3. EPSS: 0.6% chance of exploitation in the next 30 days.

Apache Airflow's `/assets/events` API returned asset events for every Dag in the deployment, with no filter restricting them to the Dags the caller is authorized to read. Any authenticated user holding asset-read access could therefore enumerate asset events — including the source Dag ID, task ID, run ID and event timestamps — for Dags they have no permission to see. Because the filter was also absent from the count query, `total_entries` and pagination disclosed the existence of hidden Dags even without inspecting individual rows. Deployments are affected whenever per-Dag access control is used to separate teams or tenants; no special configuration is required. Upgrade to apache-airflow 3.3.2 or later.

Affected products

• Apache Airflow: before 3.3.2 (fixed in 3.3.2)

Published 2026-09-21. Last modified 2026-09-25.