---
id: CVE-2026-79748
title: >-
  MCPHub is a unified hub for centrally managing and dynamically orchestrating
  multiple MCP servers/APIs into separate endpoints with flexible routing
  strategies
summary: >-
  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 0.12.15, the POST /api/servers and PUT
  /api/servers/:name e…
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-862
published: '2026-08-31'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T21:08:37.320'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-79748'
references:
  - url: 'https://github.com/samanhappy/mcphub/pull/770'
    label: security-advisories@github.com
  - url: 'https://github.com/samanhappy/mcphub/releases/tag/v0.12.15'
    label: security-advisories@github.com
  - url: >-
      https://github.com/samanhappy/mcphub/security/advisories/GHSA-mx89-jjx9-gjr8
    label: security-advisories@github.com
  - url: >-
      https://github.com/samanhappy/mcphub/security/advisories/GHSA-mx89-jjx9-gjr8
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00333
epssPercentile: 0.26731
ingestedAt: '2026-09-08T21:11:12.288Z'
---

## Overview

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 0.12.15, the POST /api/servers and PUT /api/servers/:name endpoints in MCPHub create/update MCP server configurations and then immediately spawn the configured stdio process via child_process.spawn. Authentication is required, but there is no authorization check restricting these endpoints to admins, and there is no allowlist/sanitization on the command and args fields. As a result, any authenticated non-admin user can submit a server configuration with command:"/bin/sh" (or any other binary) and arbitrary args, causing MCPHub to execute the attacker-controlled process as the MCPHub server's OS user (commonly root in the published Docker image and in npx/systemd deployments). This issue has been patched in version 0.12.15.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.