{"id":"CVE-2026-79766","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-79766","generatedAt":"2026-10-28T03:28:15.146Z","title":"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.","description":"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.","published":"2026-09-24T17:17:07.000Z","lastModified":"2026-09-29T03:17:18.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-78"],"affected":[],"epss":{"score":0.00482,"percentile":0.41279,"date":"2026-10-26","history":[{"date":"2026-09-25","score":0.00388,"percentile":0.30118}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-24T17:17:07.000Z","detail":{"score":"9.1","severity":"CRITICAL","publishedAt":"2026-09-24T17:17:06.650Z"},"summary":"New CVE, critical severity (CVSS 9.1)."}],"references":[{"url":"https://github.com/Termix-SSH/Termix/commit/c7a9063a72071153723e668787548766c971f029","source":"security-advisories@github.com"},{"url":"https://github.com/Termix-SSH/Termix/commit/ddbdd5c437c2296607dfaa4265d6f63fbc1ca92e","source":"security-advisories@github.com"},{"url":"https://github.com/Termix-SSH/Termix/pull/1067","source":"security-advisories@github.com"},{"url":"https://github.com/Termix-SSH/Termix/releases/tag/release-2.5.1-tag","source":"security-advisories@github.com"},{"url":"https://github.com/Termix-SSH/Termix/security/advisories/GHSA-pr55-25gf-5f9v","source":"security-advisories@github.com"},{"url":"https://github.com/Termix-SSH/Termix/security/advisories/GHSA-pr55-25gf-5f9v","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-79766","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}