CVE-2026-79766
criticalTermix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities.
Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. From 2.4.1 until 2.5.1, an authenticated Termix administrator can store attacker-controlled domain and email values through PATCH /users/acme-ssl-settings and trigger their interpolation into a certbot shell command through POST /users/acme-ssl-request. In src/backend/database/routes/acme-ssl-routes.ts, child_process.execSync invokes /bin/sh -c with those values only wrapped in double quotes, so shell metacharacters can execute arbitrary operating-system commands as the Termix backend process. Both HTTP webroot and DNS Cloudflare challenge modes are affected, and compromise exposes Termix databases, process secrets, stored credentials, and network reachability. This issue is fixed in version 2.5.1.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/Termix-SSH/Termix/commit/c7a9063a72071153723e668787548766c971f029 security-advisories@github.com
- https://github.com/Termix-SSH/Termix/commit/ddbdd5c437c2296607dfaa4265d6f63fbc1ca92e security-advisories@github.com
- https://github.com/Termix-SSH/Termix/pull/1067 security-advisories@github.com
- https://github.com/Termix-SSH/Termix/releases/tag/release-2.5.1-tag security-advisories@github.com
- https://github.com/Termix-SSH/Termix/security/advisories/GHSA-pr55-25gf-5f9v security-advisories@github.com
- https://github.com/Termix-SSH/Termix/security/advisories/GHSA-pr55-25gf-5f9v 134c704f-9b21-4f2e-91b3-4a467353bcc0