Termix-SSH Termix up to 2.3.1 Proxy Connectivity Test /host/db/proxy/test singleProxy/proxyChain/testTarget server-side request forgery

Summaryinfo

A vulnerability, which was classified as problematic, was found in Termix-SSH Termix up to 2.3.1. The impacted element is an unknown function of the file /host/db/proxy/test of the component Proxy Connectivity Test. The manipulation of the argument singleProxy/proxyChain/testTarget results in server-side request forgery. This vulnerability is cataloged as CVE-2026-53549. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Termix-SSH Termix up to 2.3.1. Affected is some unknown functionality of the file /host/db/proxy/test of the component Proxy Connectivity Test. The manipulation of the argument singleProxy/proxyChain/testTarget with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality. CVE summarizes:

Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. Prior to 2.3.2, the POST /host/db/proxy/test endpoint accepts the singleProxy, proxyChain, and testTarget request fields without validating their destination addresses. The testProxyConnectivity path uses raw TCP and SOCKS connections to attacker-selected hosts and ports, allowing an authenticated user to probe localhost, private networks, link-local metadata services, and other infrastructure reachable from the Termix server. Structured connection errors disclose host reachability and timing information, and successful metadata access can expose cloud credentials. This issue is fixed in version 2.3.2.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-53549 since 06/09/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available.

Upgrading to version 2.3.2 eliminates this vulnerability.

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Productinfo

Type

• SSH Server Software

Vendor

• Termix-SSH

Name

• Termix

Version

• 2.3.0
• 2.3.1

Website

• Product: https://github.com/Termix-SSH/Termix/

CPE 2.3info

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CPE 2.2info

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