Termix-SSH Termix up to 2.3.1 Host Resolver host-resolver.ts resolveHostById hostConfig.id information disclosure

Summaryinfo

A vulnerability labeled as problematic has been found in Termix-SSH Termix up to 2.3.1. Affected by this issue is the function resolveHostById of the file src/backend/ssh/host-resolver.ts of the component Host Resolver. The manipulation of the argument hostConfig.id results in information disclosure. This vulnerability was named CVE-2026-53546. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Termix-SSH Termix up to 2.3.1. Affected is the function resolveHostById of the file src/backend/ssh/host-resolver.ts of the component Host Resolver. The manipulation of the argument hostConfig.id with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. 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 terminal WebSocket accepts a user-controlled hostConfig.id and src/backend/ssh/host-resolver.ts resolves that host without requiring ownership or explicit access. When no credential is shared with the requester, resolveHostById performs an owner credential fallback, and src/backend/ssh/terminal.ts combines that credential with attacker-controlled ip, port, and username values. An authenticated low-privileged user can therefore make Termix authenticate to an attacker-controlled SSH server and disclose another user's stored SSH password or private-key material while the victim user's data key is unlocked. This issue is fixed in version 2.3.2.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-53546 since 06/09/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

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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