CVE-2026-79750— MCPHub authenticated horizontal IDOR: any non-admin user executes tools on other users' MCP servers (cross-tenant file read + SSRF)
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.
Saman MCPHub是Saman个人开发者的一个机器学习模型与人工智能应用的管理平台。 Saman MCPHub 1.0.30之前版本存在授权问题漏洞，该漏洞源于工具执行API未实施所有权限制，可能导致跨租户攻击，包括任意主机文件读取和服务端请求伪造。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| samanhappy | mcphub | < 1.0.30 |
affected |
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I. Basic Information for CVE-2026-79750
Vulnerability Information
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Vulnerability Title
MCPHub authenticated horizontal IDOR: any non-admin user executes tools on other users' MCP servers (cross-tenant file read + SSRF)
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 1.0.30, MCPHub scopes non-admin users to servers they own (list views and config edits enforce ownership), but the tool-execution API does not. Any authenticated non-admin user can invoke tools on MCP servers owned by other users — servers they cannot even see in GET /api/servers. Because connected MCP servers carry real capability (filesystem, HTTP fetch, cloud APIs with the owner's keys), this is cross-tenant compromise: demonstrated arbitrary host file read (/etc/passwd, another user's secrets) and SSRF. This issue has been patched in version 1.0.30.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Saman MCPHub 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Saman MCPHub是Saman个人开发者的一个机器学习模型与人工智能应用的管理平台。 Saman MCPHub 1.0.30之前版本存在授权问题漏洞，该漏洞源于工具执行API未实施所有权限制，可能导致跨租户攻击，包括任意主机文件读取和服务端请求伪造。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| samanhappy | mcphub | < 1.0.30 | - |
|
II. Public POCs for CVE-2026-79750
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-79750 (1)
Other References for CVE-2026-79750 (1)
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🔗 Release v1.0.30 · samanhappy/mcphub · GitHub x_refsource_MISC
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-2026-79749 | 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
-
CVE-2026-94047
samanhappy MCPHub Template Import Endpoint templateService.t -
CVE-2026-90474
MCPHub before 1.0.32 OAuth 2.0 Authentication Bypass -
CVE-2026-79743
MCPHub: Path Traversal via Malicious MCPB Manifest Name -
CVE-2026-79744
MCPHub: Missing Authorization on `PUT /api/system-config` Le -
CVE-2026-79745
MCPHub: Missing Authorization on Built-in Prompt & Resource
Same vendor: samanhappy
-
CVE-2026-94047
samanhappy MCPHub Template Import Endpoint templateService.t -
CVE-2026-90474
MCPHub before 1.0.32 OAuth 2.0 Authentication Bypass -
CVE-2026-79743
MCPHub: Path Traversal via Malicious MCPB Manifest Name -
CVE-2026-79744
MCPHub: Missing Authorization on `PUT /api/system-config` Le -
CVE-2026-79745
MCPHub: Missing Authorization on Built-in Prompt & Resource
Same weakness: CWE-639
-
CVE-2026-116018
ONEARMY community-platform before 2.165.2 IDOR via notificat -
CVE-2026-116017
Xiaozhi-esp32-server before 0.9.8 IDOR via device address-bo -
CVE-2026-116015
yudao-cloud through 2026.09 IDOR via after-sale-log list end -
CVE-2026-116010
RosarioSIS before 12.9.1 Missing Authorization in Teacher Sa -
CVE-2026-115998
IDOR: User reads and modifies findings from other people's p
V. Comments for CVE-2026-79750
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