---
id: CVE-2026-53546
title: >-
  Termix is a web-based server management platform with SSH terminal, tunneling,
  and file editing capabilities
summary: >-
  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
  th…
severity: critical
cvss: 9.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N'
cwe:
  - CWE-639
  - CWE-862
vendor: Termix-SSH
product: Termix
affected:
  - Termix < 2.3.2
published: '2026-08-19'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:15:59.613'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53546'
references:
  - url: >-
      https://github.com/Termix-SSH/Termix/commit/52f4e51ae03b5b8d2608e1383e2ccf79d290132b
    label: security-advisories@github.com
  - url: 'https://github.com/Termix-SSH/Termix/pull/874'
    label: security-advisories@github.com
  - url: 'https://github.com/Termix-SSH/Termix/releases/tag/release-2.3.2-tag'
    label: security-advisories@github.com
  - url: >-
      https://github.com/Termix-SSH/Termix/security/advisories/GHSA-57gp-39c7-4g9r
    label: security-advisories@github.com
  - url: >-
      https://github.com/Termix-SSH/Termix/security/advisories/GHSA-57gp-39c7-4g9r
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-08-20T19:36:30.593550Z'
ingestedAt: '2026-09-13T10:42:52.264Z'
epss: 0.00443
epssPercentile: 0.37975
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.