CVE-2026-75158 Apache Airflow: Assets events API returns asset events for every Dag with no per-Dag authorization filter
Authenticated users can enumerate asset events and hidden DAG metadata across all DAGs due to missing per-DAG authorization filters in the API.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-75158?
CVE-2026-75158 is a medium-severity missing authorization vulnerability in Apache Airflow, published on 21 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-200
Which versions are affected by CVE-2026-75158?
2 open source packages ship an affected version, including apache-airflow and airflow. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
apache-airflow PyPI | All versions | 3.3.2 |
airflow Bitnami | All versions | 3.3.2 |
Products include Apache Airflow.
How do I fix CVE-2026-75158?
Upgrade apache-airflow to 3.3.2 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-75158 being exploited?
There is no known exploitation of CVE-2026-75158 in the wild and no public exploit code.
Other vulnerabilities in Apache Airflow
- CVE-2020-13927 Apache Airflow's Experimental API Authentication Bypass
- CVE-2020-11978 Apache Airflow Command Injection
- CVE-2026-33264 Apache Airflow: DAG author RCE on webserver via unrestricted import_string() in BaseSerialization.deserialize()
- CVE-2023-25754 Apache Airflow: Privilege escalation using airflow logs
- CVE-2023-22884 Apache Airflow, Apache Airflow MySQL Provider: Arbitrary file read via MySQL provider in Apache Airflow
Sources
Also known as BIT-airflow-2026-75158, CLEANSTART-2026-CM94028, GHSA-pfr9-65p3-w9r9, PYSEC-2026-3988.