Apache Airflow versions 1.10.10 and below are vulnerable to remote code/command injection vulnerabilities in one of the example DAGs shipped with Airflow. This could allow any authenticated user to run arbitrary commands as the user running airflow worker/scheduler (depending on the executor in use).
View the template here CVE-2020-11978.yaml
References:
https://github.com/pberba/CVE-2020-11978