Medium [CVE-2026-111453] Apache Airflow's API endpoint for deleting an asset's queued events checked Dag edit permission against the `dag_id` query parameter, but deleted the queued events of every Dag the caller could read
This medium-severity Apache Software Foundation advisory covers CVE-2026-111453; related products: Apache Airflow.
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Summary
Apache Airflow's API endpoint for deleting an asset's queued events checked Dag edit permission against the `dag_id` query parameter, but deleted the queued events of every Dag the caller could read. An authenticated user with edit permission on one Dag and read access to others could suppress asset-triggered runs of Dags they cannot edit.
This is an incomplete fix for CVE-2026-75157: users who upgraded to apache-airflow 3.3.2 for that fix are still affected and should upgrade to apache-airflow 3.4.0 or later.
Is CVE-2026-111453 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-111453 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-111453?
Upgrade to a fixed release named by Apache:
- 3.3.2
- 3.4.0
Confirm against the vendor advisory before you patch.
- Apache Airflow 3.3.2 before 3.4.0
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
- 3.3.2
- 3.4.0
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation checklist
- This is an incomplete fix for CVE-2026-75157: users who upgraded to apache-airflow 3.3.2 for that fix are still affected and should upgrade to apache-airflow 3.4.0 or later.
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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