CVE-2026-79766

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.

• CWE-78

• https://github.com/Termix-SSH/Termix/commit/c7a9063a72071153723e668787548766c971f029
• https://github.com/Termix-SSH/Termix/commit/ddbdd5c437c2296607dfaa4265d6f63fbc1ca92e
• https://github.com/Termix-SSH/Termix/pull/1067
• https://github.com/Termix-SSH/Termix/releases/tag/release-2.5.1-tag
• https://github.com/Termix-SSH/Termix/security/advisories/GHSA-pr55-25gf-5f9v

Published

Sep 24, 2026

Last Modified

Sep 25, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-7976Use after free in Views in Google Chrome prior to 148.0.7778…7.5
• CVE-2026-79760Termix is a web-based server management platform with SSH te…6.4
• CVE-2026-79761Termix is a web-based server management platform with SSH te…6.6
• CVE-2026-79762Termix is a web-based server management platform with SSH te…5.5
• CVE-2026-79763Termix is a web-based server management platform with SSH te…5.3
• CVE-2026-79764Termix is a web-based server management platform with SSH te…7.7
• CVE-2026-79767Gardener implements the automated management and operation o…5.5
• CVE-2026-79769Nokogiri versions before 1.19.4 contain a possible invalid (…5.5
• CVE-2026-7977Inappropriate implementation in Canvas in Google Chrome prio…6.3
• CVE-2026-79770Nokogiri versions before 1.19.3 contain regular expression d…7.5
• CVE-2026-79771Nokogiri versions before 1.19.3 contain a memory leak in the…5.3
• CVE-2026-79772Nokogiri versions before 1.19.1 fail to check the return val…5.3