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CVE-2026-79744— MCPHub: Missing Authorization on `PUT /api/system-config` Lets Any Non-Admin Rewrite Global Security Configuration

Quick assessment

Affected
samanhappy mcphub
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MCPHub 是一个统一的中枢平台，用于集中管理和动态编排多个 MCP 服务器/API，并通过灵活的路由策略将其组织为独立的端点。 在 1.0.29 版本之前，MCPHub 的 端点（由 处理函数处理）未执行任何授权检查。该端点仅受到应用级认证中间件和速率限制器的保护，但从未检查 属性。该问题已在 1.0.29 版本中修复。

CVSS 8.8 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
samanhappy mcphub < 1.0.29 affected
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I. Basic Information for CVE-2026-79744

Vulnerability Information
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Vulnerability Title
MCPHub: Missing Authorization on `PUT /api/system-config` Lets Any Non-Admin Rewrite Global Security Configuration
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
samanhappy mcphub < 1.0.29 -

II. Public POCs for CVE-2026-79744

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III. Intelligence Information for CVE-2026-79744

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Vendor Advisories for CVE-2026-79744 (1)

Vendor Pages for CVE-2026-79744 (1)

Same Patch Batch · samanhappy · 2026-08-31 · 8 CVEs total

CVE-2026-79748 9.9 CRITICAL MCPHub: Authenticated non-admin user achieves RCE via POST /api/servers (missing authoriza
CVE-2026-79746 8.1 HIGH MCPHub: Server-scoped bearer key gains access to an entire group via partial (any-overlap)
CVE-2026-79750 7.7 HIGH MCPHub authenticated horizontal IDOR: any non-admin user executes tools on other users' MC
CVE-2026-79749 7.6 HIGH MCPHub: SSRF Guard Bypass via IPv6 Transition Addresses in URL Validation
CVE-2026-79745 7.1 HIGH MCPHub: Missing Authorization on Built-in Prompt & Resource CRUD (Unauthorized Tampering o
CVE-2026-79747 7.1 HIGH MCPHub vulnerable to SSRF: a non-admin user can make mcphub request arbitrary URLs and rea
CVE-2026-79743 6.9 MEDIUM MCPHub: Path Traversal via Malicious MCPB Manifest Name

IV. Related Vulnerabilities

Same product: mcphub
Same vendor: samanhappy
Same weakness: CWE-269

V. Comments for CVE-2026-79744

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