CVE-2026-22252— LibreChat MCP Stdio Remote Command Execution
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I. Basic Information for CVE-2026-22252
Vulnerability Information
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Vulnerability Title
LibreChat MCP Stdio Remote Command Execution
Source: NVD (National Vulnerability Database)
Vulnerability Description
LibreChat is a ChatGPT clone with additional features. Prior to v0.8.2-rc2, LibreChat's MCP stdio transport accepts arbitrary commands without validation, allowing any authenticated user to execute shell commands as root inside the container through a single API request. This vulnerability is fixed in v0.8.2-rc2.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
LibreChat 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LibreChat是LibreChat开源的一个免费、高度可定制的统一 AI 对话平台，能够在一个界面中聚合并运行来自任意厂商的大模型。 LibreChat v0.8.2-rc2之前版本存在授权问题漏洞，该漏洞源于MCP stdio传输接受任意命令且未经验证，可能导致任何经过身份验证的用户通过单个API请求以root身份在容器内执行shell命令。
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)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| danny-avila | LibreChat | < v0.8.2-rc2 | - |
II. Public POCs for CVE-2026-22252
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
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LibreChat Affected by Arbitrary File Write via `execute_code - CVE-2026-31951
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LibreChat Server-Side Request Forgery using DNS resolution - CVE-2026-31943
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Same vendor: danny-avila
- CVE-2026-34371
LibreChat Affected by Arbitrary File Write via `execute_code - CVE-2026-31951
LibreChat's MCP Server Header Injection Enables OAuth Token - CVE-2026-31950
LibreChat's IDOR in SSE Stream Subscription Allows Reading O - CVE-2026-31945
LibreChat Server-Side Request Forgery using DNS resolution - CVE-2026-31943
LibreChat has SSRF protection bypass via IPv4-mapped IPv6 no
Same weakness: CWE-285
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V. Comments for CVE-2026-22252
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