Termix: Authenticated blind SSRF through notification channel test endpoints

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-79760
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-24 16:17:11 UTC
Updated2026-09-28 16:17:15 UTC
DescriptionTermix 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.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L

EPSS: 0.003030000 probability, percentile 0.206850000 (date 2026-09-29)

Problem Types: CWE-918 | CWE-918 CWE-918: Server-Side Request Forgery (SSRF)

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L
3.1CNADECLARED6.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Termix-SSH Termix affected >= 2.5.0, < 2.5.1 Not specified

References

ReferenceSourceLinkTags
github.com/Termix-SSH/Termix/security/advisories/GHSA-6hx3-9mgq-h9fj [email protected] github.com
github.com/Termix-SSH/Termix/pull/1067 [email protected] github.com
github.com/Termix-SSH/Termix/releases/tag/release-2.5.1-tag [email protected] github.com
github.com/Termix-SSH/Termix/commit/ddbdd5c437c2296607dfaa4265d6f63fbc1c... [email protected] github.com
github.com/Termix-SSH/Termix/commit/e1d1a3e53d65794ec2f23099bafe77fdfdd1... [email protected] github.com
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