CVE-2026-81735: Mcp Server Insecure Default Listen All Interfaces

Defaulting the host binding address to '::' binds the server to all network interfaces, potentially exposing sensitive or unauthenticated endpoints to external network clients. Default to '127.0.0.1' or 'localhost' instead.

Provally CuratedPublic repositoryHighMedium confidenceVerifiedApache-2.0TS
greprules fetch cve-2026-81735-mcp-server-insecure-default-listen-all-interfaces --engine opengrep

Description

Defaulting the host binding address to '::' binds the server to all network interfaces, potentially exposing sensitive or unauthenticated endpoints to external network clients. Default to '127.0.0.1' or 'localhost' instead.