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I. Basic Information for CVE-2026-34237
Vulnerability Information

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Vulnerability Title
MCP Java SDK has a Hardcoded Wildcard CORS (Access-Control-Allow-Origin: *)
Source: NVD (National Vulnerability Database)
Vulnerability Description
MCP Java SDK is the official Java SDK for Model Context Protocol servers and clients. Prior to versions 1.0.1 and 1.1.1, there is a hardcoded wildcard CORS vulnerability. This issue has been patched in versions 1.0.1 and 1.1.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
过度许可的跨域白名单
Source: NVD (National Vulnerability Database)
Vulnerability Title
MCP Java SDK 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MCP Java SDK是Model Context Protocol开源的一个用于Java应用集成AI模型与工具的标准协议SDK。 MCP Java SDK 1.0.1之前版本和1.1.1之前版本存在安全漏洞,该漏洞源于存在硬编码的通配符CORS。
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
VendorProductAffected VersionsCPESubscribe
modelcontextprotocoljava-sdk < 1.0.1 -
II. Public POCs for CVE-2026-34237
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III. Intelligence Information for CVE-2026-34237
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IV. Related Vulnerabilities
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