{"id":"CVE-2026-94134","title":"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","summary":"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 …","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-322"],"vendor":"Apache Software Foundation","product":"apache-airflow-providers-ssh","affected":["apache-airflow-providers-ssh < 7.0.0","apache-airflow-providers-sftp < 7.0.0"],"published":"2026-10-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:20:39.130","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-94134","references":[{"url":"https://github.com/apache/airflow/pull/73419","label":"security@apache.org"},{"url":"https://lists.apache.org/thread/ksr1lztvd3zr74f8xd1hzch1ssl0l3lj","label":"security@apache.org"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-94135","label":"security@apache.org"}],"tags":["nvd","exploit-available","cve.org"],"epss":0.006,"epssPercentile":0.48493,"exploits":{"github":1,"githubRepos":["https://github.com/MosesOX/POC-CVE-2026-94134"],"checkedAt":"2026-10-27T18:52:45.379Z"},"exploitAvailable":true,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-16T14:53:40.519965Z"},"ingestedAt":"2026-10-15T22:48:25.376Z","slug":"CVE-2026-94134","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":62,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":223936,"id":"CVE-2026-94134","ts":1792282750491,"field":"exploit_available","old":"false","new":"true"},{"seq":223013,"id":"CVE-2026-94134","ts":1792164071667,"field":"cvss","old":null,"new":"9.1"},{"seq":223012,"id":"CVE-2026-94134","ts":1792164071667,"field":"severity","old":"none","new":"critical"}]}