CVE-2026-42453
Received Received - Intake
Command Injection in Termix Web-Based Server Management Platform

Publication date: 2026-05-08

Last updated on: 2026-05-11

Assigner: GitHub, Inc.

Description
Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. Prior to version 2.1.0, the extractArchive and compressFiles endpoints in file-manager.ts use double-quoted strings for shell command construction, unlike all other file manager operations which use single-quote escaping. Double quotes allow $(command) substitution, enabling command injection on the remote SSH host. This issue has been patched in version 2.1.0.
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Meta Information
Published
2026-05-08
Last Modified
2026-05-11
Generated
2026-06-19
AI Q&A
2026-05-09
EPSS Evaluated
2026-06-18
NVD
CVE-2026-42453
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
termix termix to 2.1.0 (exc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
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Executive Summary

This vulnerability exists in Termix, a web-based server management platform. Before version 2.1.0, the extractArchive and compressFiles endpoints in the file manager used double-quoted strings to construct shell commands. Unlike other file manager operations that use single-quote escaping, the use of double quotes allows command substitution via $(command). This enables an attacker to perform command injection on the remote SSH host, potentially executing arbitrary commands.

Impact Analysis

The vulnerability can allow an attacker to inject and execute arbitrary commands on the remote SSH host through the vulnerable endpoints. This can lead to unauthorized access, data manipulation, system compromise, or disruption of services managed by Termix.

Mitigation Strategies

The vulnerability is caused by unsafe shell command construction in Termix versions prior to 2.1.0, allowing command injection via the extractArchive and compressFiles endpoints.

To mitigate this vulnerability immediately, upgrade Termix to version 2.1.0 or later, where the issue has been patched.

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