CVE-2026-42454 | Termix is a web-based server management platform with SSH te… | CVSS 9.9 CRITICAL

Description

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.

Metadata

CVE ID: CVE-2026-42454
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-04-27 13:55 UTC
Published: 2026-05-08 22:56 UTC
Last updated: 2026-05-14 03:56 UTC
Primary CWE: CWE-78
CWE-78: Improper Neutralization of Special Elements used in …
Vendor / Product: Termix-SSH / Termix
Sources: cve.org · NVD

Severity & Metrics

9.9 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
Termix-SSH	Termix	—	< 2.1.0

Weakness (CWE)

CWE	Source	Description
CWE-78	cna	CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.9	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References (2)

https://github.com/Termix-SSH/Termix/security/advisories/GHSA-c2g2-hqgq-6w9v https://github.com/Termix-SSH/Termix/security/advisories/GHSA-c2g2-hqgq-6w9v
https://github.com/Termix-SSH/Termix/releases/tag/release-2.1.0-tag https://github.com/Termix-SSH/Termix/releases/tag/release-2.1.0-tag