CVE-2026-75158: 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…

PriorityP426medium4.3CVSS 3.1

AVNACLPRLUINSUCLINAN

EPSS

0.64%

49.8th percentile

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

2 ranges

Vendor	Product	Version range	Fixed in
apache	airflow	< 3.3.2	3.3.2
apache_software_foundation	apache_airflow	< 3.3.2	3.3.2

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