CVE-2026-55605— @arikusi/deepseek-mcp-server 缺少身份验证
可能的 ATT&CK 技术 1AI
T1190 · Exploit Public-Facing Application影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| arikusi | deepseek-mcp-server | >= 1.4.2, < 1.8.0 | affected |
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一、 漏洞 CVE-2026-55605 基础信息
漏洞信息
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Vulnerability Title
@arikusi/deepseek-mcp-server Missing Authentication on Self-Hosted HTTP MCP Endpoint
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
DeepSeek MCP Server is an MCP server for DeepSeek V4. Starting in version 1.4.2 and prior to version 1.8.0, the self-hosted HTTP transport of `@arikusi/deepseek-mcp-server` exposes `POST /mcp` without any authentication: `createMcpExpressApp` is called without an `authProvider` and no middleware guards the route, so any network-reachable client can issue an unauthenticated `initialize` request and obtain a valid MCP session identifier. In reproduced testing against commit `5e1302171e99`, an unauthenticated client was able to initialize a session, enumerate tools, and invoke the local `deepseek_sessions` tool with no credentials. The same unauthenticated session also exposes `deepseek_chat`, whose handler uses the server-side `DEEPSEEK_API_KEY` when self-hosted deployments configure one. This issue applies to self-hosted HTTP mode, not the separately documented hosted BYOK endpoint in `README.md`, which expects an `Authorization: Bearer ...` header. Upstream self-hosted container assets enable HTTP mode by default (`Dockerfile`) and publish port `3000` (`docker-compose.yml`). Version 1.8.0 contains a patch for this issue.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
关键功能的认证机制缺失
来源: 美国国家漏洞数据库 NVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| arikusi | deepseek-mcp-server | >= 1.4.2, < 1.8.0 | - |
二、漏洞 CVE-2026-55605 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-55605 补丁与修复 (1)
CVE-2026-55605 厂商安全公告 (1)
CVE-2026-55605 其他参考 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-55605
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