---
cve: "CVE-2026-53546"
severity: "CRITICAL"
cvss: 9.6
epss: "36%"
vendor: "Termix-SSH"
kev: false
exploited: false
published: "2026-08-19 21:16:56"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T07:51:14+02:00"
---

# CVE-2026-53546

> 9.6 CRITICAL · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 52f4e51ae03b5b8d2608e1383e2ccf79d290132b (Commit)
- c3282b5dca081d52513e94329bbc71084338217d (Commit)

## Referenzen

- <https://github.com/Termix-SSH/Termix/security/advisories/GHSA-57gp-39c7-4g9r>
- <https://github.com/Termix-SSH/Termix/pull/874>
- <https://github.com/Termix-SSH/Termix/commit/52f4e51ae03b5b8d2608e1383e2ccf79d290132b>
- <https://github.com/Termix-SSH/Termix/releases/tag/release-2.3.2-tag>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-53546) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_