Apache Airflow BashOperator shell injection via unsafe dag_run.conf documentation example
CVE-2026-30898 affects Apache Airflow versions before 3.2.0. The issue is not described as an inherent flaw in BashOperator itself, but as unsafe official documentation guidance showing an example of passing dag_run.conf into BashOperator in a manner that could place unsanitized user-controlled input into a shell command. If operators copied this example into their own DAGs, attacker-controlled values from dag_run.conf could be interpreted by the shell, resulting in command injection on the Airflow worker. The vulnerable pattern therefore arises when user input from the Airflow UI is incorporated into a BashOperator command without proper sanitization or safe parameter handling.
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