by Kastro
Paper/Archive/CVE-2026-53546

CVE-2026-53546

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

EPSS 0.5%public exploitCVSS 9.6
critical.is priorityof 100
47
CVSS 9.6 (CNA)9.6 / 10 × 3028.8Not in CISA KEV+300.0EPSS percentile 40.2.402 × 208.0Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Termix< 2.3.2–CNA

Scores by source

GitHub_M (CNA)9.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/Termix-SSH/Termix/security/advisories/GHSA-57gp-39c7-4g9rrefgithub.com/Termix-SSH/Termix/pull/874refgithub.com/Termix-SSH/Termix/commit/52f4e51ae03b5b8d2608e1383e2ccf79d290132brefgithub.com/Termix-SSH/Termix/releases/tag/release-2.3.2-tag