CVE-2026-94135

The Apache Airflow SFTP provider's deferrable code paths (`SFTPTrigger`, `SFTPHookAsync`, `SFTPClientPool`) disable SSH host-key verification by default unless the connection explicitly sets `no_host_key_check` to false. Deployments that run SFTP sensors or operators in deferrable mode are affected. An attacker in a machine-in-the-middle position between the triggerer and the SFTP server can impersonate the server and capture the credentials or data exchanged. Users of apache-airflow-providers-sftp are recommended to upgrade to apache-airflow-providers-sftp 7.0.0 or later. This is a separate defect from CVE-2026-94134 (the synchronous SSH hook default, which also affects the SFTP hook); users who applied the fix for one also need this release for the other - apache-airflow-providers-sftp 7.0.0 fixes both.

• CWE-322

• https://github.com/apache/airflow/pull/73419
• https://lists.apache.org/thread/jbzs97t9y1zd1yp5rvxzjbx90mqz82kf
• https://www.cve.org/CVERecord?id=CVE-2026-94134

Published

Oct 15, 2026

Last Modified

Oct 16, 2026

Status

Awaiting Analysis

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