CVE-2026-94140 Rex versions through 1.16.1 for Perl accept an unknown SSH host key for remote rsync transfers because sync hardcodes StrictHostKeyChecking=no

Rex versions through 1.16.1 for Perl accept an unknown SSH host key for remote rsync transfers because sync hardcodes StrictHostKeyChecking=no. Every remote branch of sync builds its ssh command with that option, for password authentication, for private-key authentication and for the fallback. Th...

CVE-2026-94140

Versions of Rex through 1.16.1 for Perl are vulnerable to a Man-in-the-Middle (MitM) attack during remote rsync transfers. The root cause is that the sync command hardcodes the SSH option StrictHostKeyChecking=no , which persists even if users attempt to set options via set_openssh_opt. This allo...

kas Persistently Disables SSH Host Key Checking

Summarykas persistently disables SSH host key checking for the invoking user when internal SSH key setup is triggered via SSHPRIVATEKEY or SSHPRIVATEKEYFILE and no user-specific SSH configuration file exists so far.When this path is used, kas creates /.ssh/config with a global Host rule containin...

PT-2026-76462

Summary The AWS Command Line Interface AWS CLI is a unified tool to manage AWS services from the command line. An issue exists where the EMR SSH helper commands aws emr ssh, aws emr socks, aws emr put, aws emr get passed StrictHostKeyChecking=no to the underlying SSH client, disabling host key...

CVE-2024-4871: Key Exchange without Entity Authentication

A vulnerability was found in Satellite. When running a remote execution job on a host, the host's SSH key is not being checked. When the key changes, the Satellite still connects it because it uses "-o StrictHostKeyChecking=no". This flaw can lead to a man-in-the-middle attack MITM, denial of...