{"schema_version": "1.6.1", "id": "CVE-2026-94134", "summary": "SSH hook disables host-key verification by default", "details": "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.\n\nUsers 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.", "affected": [{"ranges": [{"type": "SEMVER", "events": [{"introduced": "0"}, {"fixed": "7.0.0"}]}]}, {"ranges": [{"type": "SEMVER", "events": [{"introduced": "0"}, {"fixed": "7.0.0"}]}]}], "references": [{"type": "WEB", "url": "https://github.com/apache/airflow/pull/73419"}, {"type": "WEB", "url": "https://www.cve.org/CVERecord?id=CVE-2026-94135"}, {"type": "WEB", "url": "https://lists.apache.org/thread/ksr1lztvd3zr74f8xd1hzch1ssl0l3lj"}]}