MCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies. Prior to version 1.0.29, MCPHub's PUT /api/system-config endpoint (handler updateSystemConfig) performs no authorization check. It is protected only by the app-wide authentication middleware and a rate limiter — it never inspects req.user.isAdmin. This issue has been patched in version 1.0.29.

CVE-2026-79744 affects MCPHub, a unified hub for managing and orchestrating multiple MCP servers and APIs. Prior to version 1.0.29, the PUT /api/system-config endpoint (updateSystemConfig handler) lacked proper authorization checks. The endpoint was protected only by app-wide authentication middleware and a rate limiter, but never verified whether the requesting user had admin privileges via req.user.isAdmin. This means any authenticated user, regardless of role, could modify system configuration settings. The vulnerability represents a broken access control / missing authorization flaw. The issue has been patched in MCPHub version 1.0.29. Users are advised to upgrade immediately to mitigate the risk of unauthorized system configuration changes.