Medium [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 authorized to read
This medium-severity Apache Software Foundation advisory covers CVE-2026-75158; related products: Apache Airflow.
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Summary
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
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.
- Apache Airflow before 3.3.2
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
Mitigation checklist
- Upgrade to apache-airflow 3.3.2 or later.
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
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