What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-19 · updated 2026-09-09
• Weakness: CWE-639

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.

Affected products

• Termix-SSH Termix: before 2.3.2

References

• https://github.com/Termix-SSH/Termix/commit/52f4e51ae03b5b8d2608e1383e2ccf79d290132b
• 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

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