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.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/Termix-SSH/Termix/commit/52f4e51ae03b5b8d2608e1383e2ccf79d290
- https://github.com/Termix-SSH/Termix/pull/874
- https://github.com/Termix-SSH/Termix/releases/tag/release-2.3.2-tag
- https://github.com/Termix-SSH/Termix/security/advisories/GHSA-57gp-39c7-4g9r
- https://github.com/Termix-SSH/Termix/security/advisories/GHSA-57gp-39c7-4g9r
FAQ
What is CVE-2026-53546?
CVE-2026-53546 is a vulnerability with a CVSS score of 9.6 (CRITICAL). 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/bac...
How severe is CVE-2026-53546?
CVE-2026-53546 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-53546?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.