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CVE-2026-53546— Termix: Missing authorization in SSH host credential resolution exposes stored credentials

Quick assessment

Affected
Termix-SSH Termix
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

termix是termix个人开发者的一个终端模拟器。 Termix 2.3.2之前版本存在授权问题漏洞，该漏洞源于终端WebSocket接受用户控制的hostConfig.id，解析主机时未要求所有权或显式访问，并执行所有者凭据回退，将凭据与攻击者控制的IP、端口和用户名组合，可能导致认证的低权限用户向攻击者控制的SSH服务器认证并泄露其他用户存储的SSH密码或私钥材料。

CVSS 9.6 · Critical EPSS 0.36% · P30

Possible ATT&CK Techniques 1 AI

T1552.004 · Private Keys

Affected Version Matrix 1

VendorProduct Version RangeStatus
Termix-SSH Termix < 2.3.2 affected
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I. Basic Information for CVE-2026-53546

Vulnerability Information
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Vulnerability Title
Termix: Missing authorization in SSH host credential resolution exposes stored credentials
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Termix 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
termix是termix个人开发者的一个终端模拟器。 Termix 2.3.2之前版本存在授权问题漏洞，该漏洞源于终端WebSocket接受用户控制的hostConfig.id，解析主机时未要求所有权或显式访问，并执行所有者凭据回退，将凭据与攻击者控制的IP、端口和用户名组合，可能导致认证的低权限用户向攻击者控制的SSH服务器认证并泄露其他用户存储的SSH密码或私钥材料。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Termix-SSH Termix < 2.3.2 -

II. Public POCs for CVE-2026-53546

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8911 chars
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POC zip download
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III. Intelligence Information for CVE-2026-53546

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Patches & Fixes for CVE-2026-53546 (1)

Vendor Advisories for CVE-2026-53546 (1)

Same Patch Batch · Termix-SSH · 2026-08-19 · 6 CVEs total

CVE-2026-53545 9.8 CRITICAL Termix: Remote Code Execution via Tunnel Disconnect pkill Command Injection
CVE-2026-53548 9.6 CRITICAL Termix: IDOR — Authenticated user can fetch SSH passwords for hosts owned by other users
CVE-2026-53547 8.8 HIGH Termix: Account Takeover via Global Settings Disclosure
CVE-2026-53542 8.8 HIGH Termix: Tar option injection in file-manager archive creation allows command execution on
CVE-2026-53549 7.7 HIGH Termix: Server-Side Request Forgery via Proxy Connectivity Test

IV. Related Vulnerabilities

Same product: Termix
Same vendor: Termix-SSH
Same weakness: CWE-639

V. Comments for CVE-2026-53546

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