CVE-2026-81098
Gravedad CVSS v4.0:
CRÍTICA
Tipo:
CWE-306
Ausencia de autenticación para una función crítica
Fecha de publicación:
27/08/2026
Última modificación:
27/08/2026
Descripción
*** Pendiente de traducción *** The Telnyx MCP server exposed its HTTP transport on every interface and did not require a caller credential. packages/mcp-server/src/http.ts served MCP on the root path with a listener bound to all interfaces and parsed the caller's authentication headers in a mode that did not fail when they were absent, so a request without any credential completed initialisation and dispatched tools. Dispatch forwarded the server's own stored credentials, the Telnyx API key and client secret together with the code-execution key, to the upstream endpoint, so an unauthenticated caller able to reach the port acted with them. The current code defaults the host to loopback, requires a server API key, and enforces it in middleware.
Impacto
Puntuación base 4.0
9.30
Gravedad 4.0
CRÍTICA
Puntuación base 3.x
9.10
Gravedad 3.x
CRÍTICA