Apache Airflow SSH provider: SSHRemoteJobOperator: `environment` values are executed as shell on the remote host

In apache-airflow-providers-ssh before 7.0.1, SSHRemoteJobOperator quoted the values of its templated `environment` parameter only once, although they are placed inside an already-quoted wrapper script, so shell syntax such as `$(...)` in a value was executed on the remote SSH host. In a Dag that passes trigger-time input such as `params` or `dag_run.conf` into `environment`, a user who can trigger that Dag but cannot author Dags could run arbitrary commands on the remote host as the SSH connection's user. Users are advised to upgrade apache-airflow-providers-ssh to 7.0.1 or later.

Source published

26 Oct 2026 23:29:30 UTC

Source modified

27 Oct 2026 00:17:16 UTC

Observed here

27 Oct 2026 02:23:01 UTC

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