MEDIUM 4.3 NVD
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 authorize
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.
References
- https://github.com/apache/airflow/pull/71741
- https://lists.apache.org/thread/rx5lg86l0qkjl2s7dtmpqxjq0xplr4fy
- https://www.openwall.com/lists/oss-security/2026/09/21/3
This medium severity vulnerability with a CVSS score of 4.3 was published on 2026-09-21 via NVD.
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