CVE-2026-53545
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk44th percentile - higher than 44% of all known CVEs
Summary
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.
Other vulnerabilities in Termix
See all- CVE-2026-45749High
Termix is a server management platform that prior to version 2.3.2 accepted the account password as the sole authentication factor for MFA-critical operations. An attacker who obtains a user's password can completely disable TOTP or regenerate backup codes, rendering two-factor authentication ineffective.
- CVE-2026-45743High
Termix is a web-based server management platform that prior to version 2.3.2 had 16 file-manager endpoints that did not verify if the requesting user owns the SSH session identified by `sessionId`. An authenticated attacker who knows or guesses another user's active `sessionId` can access files on the victim's connected SSH host.
- CVE-2026-22804High
Termix, a web-based server management platform, versions 1.7.0 to 1.9.0, has a Stored Cross-Site Scripting (XSS) vulnerability in the File Manager component. The application fails to sanitize SVG file content before rendering, allowing an attacker who has compromised a managed SSH server to plant a malicious file. When previewed by the Termix user, it executes arbitrary JavaScript in the application context. This is fixed in version 1.10.0.
- CVE-2026-79766Critical
In Termix from 2.4.1 until 2.5.1, an authenticated Termix administrator can store attacker-controlled domain and email values through PATCH /users/acme-ssl-settings and trigger their interpolation into a certbot shell command through POST /users/acme-ssl-request. In acme-ssl-routes.ts, child_process.execSync invokes /bin/sh -c with those values only wrapped in double quotes, so shell metacharacters can execute arbitrary operating-system commands as the Termix backend process. Both HTTP webroot and DNS Cloudflare challenge modes are affected, and compromise exposes Termix databases, process secrets, stored credentials, and network reachability. This issue is fixed in version 2.5.1.
- CVE-2026-53548Critical
Termix before version 2.6.1 contains a vulnerability in the GET /host/db/host/:id/password endpoint that does not enforce host ownership during credential resolution. An authenticated user can enumerate host IDs and retrieve SSH or sudo passwords belonging to other users.
- CVE-2026-53546Critical
Termix before version 2.3.2 contains a vulnerability in the terminal WebSocket that allows an authenticated low-privileged user to use another user's credentials to connect to an attacker-controlled SSH server. This can lead to disclosure of SSH passwords or private keys.
- CVE-2026-45748Critical
Termix is a web-based server management platform that prior to version 2.3.2 had a vulnerability in the `POST /ssh/tunnel/connect` endpoint. This vulnerability allowed OS command injection through user-controlled fields being interpolated directly into a shell command.
- CVE-2026-45744Critical
Termix is a web-based server management platform that was vulnerable to OS command injection in the GET /ssh/file_manager/ssh/resolvePath endpoint prior to version 2.3.2. This allows authenticated users to execute arbitrary commands on the connected remote host.
- CVE-2026-42454Critical
Termix prior to version 2.1.0 contains a command injection vulnerability in Docker container management endpoints, where the containerId parameter is directly interpolated into shell commands, allowing an authenticated attacker to achieve remote code execution on the managed server.
- CVE-2026-79764High
Termix versions 2.5.0 through 2.5.1 have a vulnerability in the /homepage/proxy endpoint that passes the url parameter to http.get or https.get without destination restrictions. URL validation is only syntactic, allowing requests to loopback, RFC1918, link-local, and cloud metadata destinations. An authenticated low-privilege user can exfiltrate internal service data and cloud credentials.
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

