CVE-2026-53545
CriticalCVSS 9.8Summary
Termix before version 2.3.2 contains a vulnerability in the SSH tunnel teardown path that interpolates user-controlled data into a pkill command pattern. An authenticated user can inject a shell command that executes when the tunnel is disconnected.
Risk Assessment
Arbitrary command execution on the source SSH host could lead to full system compromise and access to sensitive data.
Recommendation
Upgrade Termix to version 2.3.2 or later, which includes a fix for this vulnerability.
Original NVD description (English source)
Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. Prior to 2.3.2, the DELETE /ssh/tunnel/disconnect/:tunnelName teardown path in src/backend/ssh/tunnel.ts interpolates endpointPort, sourcePort, endpointUsername, and endpointIP into single-quoted pkill -f patterns. An authenticated user who can edit a tunnel host field can include a single quote to terminate the pattern and append a shell command, which executes when the tunnel is disconnected. Successful exploitation runs arbitrary commands on the source SSH host with the privileges of the connected SSH account. This issue is fixed in version 2.3.2.