CVE-2026-42454 CRITICAL

CVE-2026-42454: Termix: OS Command Injection in Docker Container Management Endpoints

Vendor Termix-Ssh
Product Termix
Weakness CWE-78
Published May 8, 2026
Last update May 14, 2026

CVSS base score

9.9/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. Prior to version 2.1.0, all Docker container management endpoints in Termix interpolate the containerId URL path parameter and WebSocket message field directly into shell commands executed via ssh2.Client.exec() on remote managed servers without any sanitization or validation. An authenticated attacker can inject arbitrary OS commands by crafting a malicious container ID, achieving Remote Code Execution on any managed server. This issue has been patched in version 2.1.0.

Key dates

02Disclosure timeline

May 8, 2026 CVE published
May 14, 2026 Record updated