CVE-2026-94134
CVE-2026-94134 · Apache Airflow SSH provider, Apache Airflow SFTP provider: SSH hook disables host-key verification by default
This page contains facts from public vulnerability sources. Check the original advisory before updating.
The Apache Airflow SSH provider hook disables SSH host-key verification by default: unless `host_key` is configured or `no_host_key_check` is explicitly set to false, it accepts any server key. This affects SSH and SFTP connections that rely on the default. An attacker in a machine-in-the-middle position between the worker and the SSH or SFTP server can impersonate the server and capture the credentials or data a task sends. Users of apache-airflow-providers-ssh and apache-airflow-providers-sftp are recommended to upgrade to apache-airflow-providers-ssh 7.0.0 and apache-airflow-providers-sftp 7.0.0 or later. The deferrable SFTP code paths had the same default and are covered separately by CVE-2026-94135; apache-airflow-providers-sftp 7.0.0 fixes both.
CVSS 9.1 · Critical · EPSS 0.3% · Public exploit · Fix available
- Published
- Updated
Affected products and versions
apache airflow ssh provider
- Versions
- ≥ 0, < 7.0.0: Affected (semver)
Update to 7.0.0
apache airflow sftp provider
- Versions
- ≥ 0, < 7.0.0: Affected (semver)
Update to 7.0.0