CVE-2026-46555— verygoodplugins WhatsApp MCP Server 路径遍历漏洞
一分钟漏洞结论
影响对象
verygoodplugins whatsapp-mcp
利用判断
存在公开或 AI PoC，应优先验证
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。
verygoodplugins WhatsApp MCP Server是Luke Harries个人开发者开源的一个适用于 WhatsApp 的模型上下文协议（MCP）服务器，使 Claude 能够读取和发送 WhatsApp 消息。 verygoodplugins WhatsApp MCP Server 0.2.1之前版本存在安全漏洞，该漏洞源于whatsapp-bridge HTTP API缺少身份验证和Host标头验证，且/api/send端点接受绝对media_path参数未限制安全目录，可能导致
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| verygoodplugins | whatsapp-mcp | < 0.2.1 |
affected |
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一、 漏洞 CVE-2026-46555 基础信息
漏洞信息
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Vulnerability Title
WhatsApp MCP: Unauthenticated bridge API allows message sending and arbitrary file exfiltration
来源: CVE Program / CVE List V5
Vulnerability Description
WhatsApp MCP Server is a Model Context Protocol (MCP) server for WhatsApp, enabling Claude to read and send WhatsApp messages. Prior to version 0.2.1, the `whatsapp-bridge` HTTP API listens on `127.0.0.1:8080` without authentication and without Host header validation, and the `/api/send` endpoint accepts an absolute `media_path` parameter without confining it to a safe directory. Combined, these issues allow any local process running as the same user as the bridge to send WhatsApp messages from the paired account without authorization; the same caller to read arbitrary files readable by the user (e.g. SSH private keys, browser session data, source code, dotfiles) and exfiltrate them as WhatsApp document attachments; and/or a remote attacker to trigger the same operations via DNS rebinding from a webpage the user visits, since no Host header validation is performed. In MCP environments, "local caller" extends beyond processes the user explicitly launched — sibling MCP servers, IDE extensions, and tool-triggered flows running in the user's session can act as the effective caller. This issue is fixed in whatsapp-mcp v0.2.1 and corresponding Docker images / release artifacts. Users should upgrade immediately. The fix introduces bearer token authentication on the bridge HTTP API (configured via environment variable, required on all requests, validated with constant-time comparison); host header allow-list validation to prevent DNS rebinding; and confinement of `media_path` to a configured directory, with rejection of absolute paths outside the root and path traversal sequences. This is a breaking change for clients of the bridge API. For users who cannot immediately upgrade: Stop the bridge, or block loopback access to port 8080, when the bridge is not actively in use; avoid running the bridge alongside untrusted MCP servers, browser extensions, or other untrusted local processes; avoid browsing untrusted sites while the bridge is running (DNS rebinding mitigation); and/or run the bridge under a dedicated user account or in a sandbox/container with no access to sensitive files.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
来源: CVE Program / CVE List V5
Vulnerability Title
verygoodplugins WhatsApp MCP Server 路径遍历漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
verygoodplugins WhatsApp MCP Server是Luke Harries个人开发者开源的一个适用于 WhatsApp 的模型上下文协议（MCP）服务器，使 Claude 能够读取和发送 WhatsApp 消息。 verygoodplugins WhatsApp MCP Server 0.2.1之前版本存在安全漏洞，该漏洞源于whatsapp-bridge HTTP API缺少身份验证和Host标头验证，且/api/send端点接受绝对media_path参数未限制安全目录，可能导致
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| verygoodplugins | whatsapp-mcp | < 0.2.1 | - |
|
二、漏洞 CVE-2026-46555 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
Qwen3.6-35B-A3B
· 5969 chars
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完整可执行 POC 代码
利用链与缓解建议
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每月 100+ 条 AI 生成额度
三、漏洞 CVE-2026-46555 的情报信息
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CVE-2026-46555 厂商安全公告 (1)
CVE-2026-46555 其他参考 (2)
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🔗 Release v0.2.1 · verygoodplugins/whatsapp-mcp · GitHub x_refsource_MISC
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IV. Related Vulnerabilities
Same product: whatsapp-mcp
V. Comments for CVE-2026-46555
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