CVE-2026-114123— D365 F&O MCP 服务器默认认证禁用致源码泄露漏洞
一分钟漏洞结论
影响对象
dynamics365ninja d365fo-mcp-server
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
D365 F&O MCP Server 是一个用于查询 Dynamics 365 Finance & Operations（F&O）中 X++ 代码和元数据的 Model Context Protocol（MCP）服务器。在 1.11.0 版本之前，官方文档中提供的 Azure 一键式部署方案通过 和 文件，将 参数默认设置为空字符串，并将其传递给 App Service 的 设置。当 未设置或为空时， 模块会允许请求无需身份验证即可通过；同时， 默认将 HTTP 监听器绑定到 （即所有网络接口）。如果部署者留空该
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一、 漏洞 CVE-2026-114123 基础信息
漏洞信息
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Vulnerability Title
D365 F&O MCP Server: Official Azure one-click deployment ships with authentication disabled by default, exposing proprietary X++ source over the public internet
来源: CVE Program / CVE List V5
Vulnerability Description
D365 F&O MCP Server is a Model Context Protocol server for querying Dynamics 365 Finance & Operations X++ code and metadata. Prior to version 1.11.0, the officially documented Azure one-click deployment uses infrastructure/azuredeploy.json and infrastructure/main.bicep to default the apiKey parameter to an empty string and pass it to the App Service API_KEY setting. With API_KEY unset or empty, src/middleware/apiKeyAuth.ts passes requests through without authentication, while src/index.ts binds the HTTP listener to 0.0.0.0 by default. If the deployer leaves the optional key blank and does not add separate network restrictions or upstream authentication, the resulting public App Service allows unauthenticated JSON-RPC tools/call requests to /mcp. The deployment's MCP_SERVER_MODE=read-only setting does not prevent anonymous access to read/search tools, including search, get_object_info, batch_get_info, extension_info, security_info, find_references, and find_event_handlers, exposing indexed proprietary X++ source snippets and metadata. Exposed information can include business logic, extension and event-handler wiring, security-role and privilege structure, and labels originally indexed from PackagesLocalDirectory. Deployments protected by a configured API key, effective upstream authentication, or network restrictions preventing attacker access are outside this unauthenticated exposure scenario. This issue is fixed in version 1.11.0.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| dynamics365ninja | d365fo-mcp-server | < 1.11.0 | - |
|
二、漏洞 CVE-2026-114123 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-114123 其他参考 (4)
IV. Related Vulnerabilities
V. Comments for CVE-2026-114123
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