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CVE-2026-79747— MCPHub vulnerable to SSRF: a non-admin user can make mcphub request arbitrary URLs and read the response (OpenAPI proxy + transport dial)

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 是一个统一枢纽，用于集中管理和动态编排多个 MCP 服务器/API 到独立端点，并支持灵活的路由策略。在 1.0.32 版本之前，经过认证的非管理员用户可以注册一个指向任意 URL 的服务器，并使枢纽向其发起服务器端请求，且没有出口流量过滤（未阻止回环地址、RFC 1918 私网地址及链路本地地址 169.254.0.0/16）。通过 OpenAPI 代理路径，响应体将被完整返回给调用者（即完整的反射型 SSRF）；而通过 SSE/streamable-http 传输方式，请求则以盲发方式发送。该问题

CVSS 7.1 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
samanhappy mcphub < 1.0.32 affected
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I. Basic Information for CVE-2026-79747

Vulnerability Information
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Vulnerability Title
MCPHub vulnerable to SSRF: a non-admin user can make mcphub request arbitrary URLs and read the response (OpenAPI proxy + transport dial)
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 1.0.32, an authenticated non-admin user can register a server pointing at an arbitrary URL and make the hub issue server-side requests to it, with no egress filtering (no block of loopback / RFC1918 / link-local 169.254.0.0/16). Via the OpenAPI proxy path the response body is returned to the caller (full, reflected SSRF); via the SSE/streamable-http transport the request is sent blind. This issue has been patched in version 1.0.32.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
samanhappy mcphub < 1.0.32 -

II. Public POCs for CVE-2026-79747

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III. Intelligence Information for CVE-2026-79747

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Other References for CVE-2026-79747 (2)

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-2026-79744 8.8 HIGH MCPHub: Missing Authorization on `PUT /api/system-config` Lets Any Non-Admin Rewrite Globa
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-2026-79743 6.9 MEDIUM MCPHub: Path Traversal via Malicious MCPB Manifest Name

IV. Related Vulnerabilities

Same product: mcphub
Same vendor: samanhappy
Same weakness: CWE-918

V. Comments for CVE-2026-79747

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