CVE-2026-79760 Termix: Authenticated blind SSRF through notification channel test endpoints
Authenticated users can trigger blind SSRF via notification test endpoints, allowing access to internal services and limited state changes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-79760?
CVE-2026-79760 is a medium-severity server-side request forgery vulnerability in Termix-SSH Termix, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Termix is a web-based server management platform with SSH terminal, tunneling, and file editing capabilities. From 2.5.0 until 2.5.1, Termix allows authenticated users to configure webhook or ntfy notification channels with attacker-controlled destination URLs and trigger server-side requests through the notification-channel test endpoint. The request path in src/backend/database/routes/alert-rules-routes.ts reaches src/backend/utils/notification-sender.ts without destination allowlisting or private-address blocking. This permits blind requests to internal HTTP services reachable by the Termix server. Webhook mode also permits attacker-controlled HTTP methods and headers, which can cause limited state changes when an internal service accepts the fixed notification body, although response bodies are not returned. This issue is fixed in version 2.5.1.
Weakness: CWE-918
Which versions are affected by CVE-2026-79760?
How do I fix CVE-2026-79760?
No fix has been published for CVE-2026-79760 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-79760 being exploited?
There is no known exploitation of CVE-2026-79760 in the wild and no public exploit code.
Sources
Also known as GHSA-6hx3-9mgq-h9fj.