CVE-2026-46764 Apache Airflow: Event Log detail endpoint bypasses DAG-scoped event log permission filter
Authenticated users can bypass DAG-scoped permissions to read audit logs from other DAGs by enumerating event log IDs.
- 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-2026-46764?
CVE-2026-46764 is a medium-severity missing authorization vulnerability in Apache Airflow, published on 1 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Event Log detail endpoint `GET /api/v2/eventLogs/{event_log_id}` in Apache Airflow fetched audit-log rows directly by numeric ID after only the generic Audit Log permission check, while the collection endpoint `GET /api/v2/eventLogs` applied per-Dag scoping. An authenticated UI/API user with audit-log read permission for one Dag could retrieve audit-log entries for any other Dag by guessing or enumerating the numeric event log ID. Affects deployments that rely on per-Dag audit-log scoping. Users are advised to upgrade to `apache-airflow` 3.2.2 or later.
Weakness: CWE-639
Which versions are affected by CVE-2026-46764?
4 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 | 3.2.2 |
apache-airflow PyPI | All versions | 3.2.2 |
apache-airflow PyPI | All versions | 3.2.2 |
airflow Bitnami | All versions | 3.2.2 |
Products include Apache Airflow.
How do I fix CVE-2026-46764?
Upgrade apache-airflow to 3.2.2 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-46764 being exploited?
There is no known exploitation of CVE-2026-46764 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-2026-46764, ECHO-b9e9-15f1-bf82, GHSA-qphr-3mvq-v466, MINI-6cxr-7h4w-jm2g, MINI-m5fc-354v-7v8q, PYSEC-2026-2354.