CVE-2026-49487 Apache Airflow: Task-instance API exposes secrets in deferred trigger kwargs
Authenticated users with DAG read access can view secrets in deferred task trigger kwargs via the REST 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-2026-49487?
CVE-2026-49487 is a medium-severity vulnerability in Apache Airflow, published on 7 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In Apache Airflow before 3.3.0, the REST API task-instance detail and list endpoints returned a deferred task's trigger kwargs without masking. When a deferred operator passed a secret (for example a provider API key) into its trigger, any authenticated user with DAG-scoped task-instance read access for that DAG could read that secret in clear text while the task was deferred. Users should upgrade to apache-airflow 3.3.0 or later, which masks sensitive values in trigger kwargs returned by the API.
Weakness: CWE-200
Which versions are affected by CVE-2026-49487?
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 | 3.3.0 |
apache-airflow PyPI | All versions | 3.3.0 |
apache-airflow PyPI | All versions | 3.3.0 |
airflow Bitnami | All versions | 3.3.0 |
Products include Apache Airflow.
How do I fix CVE-2026-49487?
Upgrade apache-airflow to 3.3.0 or later.
Is CVE-2026-49487 being exploited?
There is no known exploitation of CVE-2026-49487 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-2026-49487, CLEANSTART-2026-SQ68931, ECHO-deab-be92-4482, GHSA-22hf-vx2v-gjff, MINI-rgv4-xp29-xqpw, MINI-xxcg-68ph-7ghx and 1 more.