Termix-SSH Termix up to 2.5.0 Notification Channel Test Endpoint notification-sender.ts server-side request forgery

Summaryinfo

A vulnerability categorized as critical has been discovered in Termix-SSH Termix up to 2.5.0. Affected is an unknown function of the file src/backend/utils/notification-sender.ts of the component Notification Channel Test Endpoint. The manipulation results in server-side request forgery. This vulnerability is reported as CVE-2026-79760. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Termix-SSH Termix up to 2.5.0. It has been classified as critical. Affected is an unknown functionality of the file src/backend/utils/notification-sender.ts of the component Notification Channel Test Endpoint. The manipulation with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-79760 since 08/25/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available.

Upgrading to version 2.5.1 eliminates this vulnerability.

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Productinfo

Type

• SSH Server Software

Vendor

• Termix-SSH

Name

• Termix

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5.0

Website

• Product: https://github.com/Termix-SSH/Termix/

CPE 2.3info

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CPE 2.2info

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