CVE-2026-34237 in modelcontextprotocol java-sdkinfo

Summary

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.

Responsible

GitHub_M

Reservation

03/26/2026

Disclosure

03/31/2026

Entries

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerability	CWE	Exp	Cou	CVE
354435	modelcontextprotocol java-sdk cross-domain policy	942	Not defined	Official fix	CVE-2026-34237

Description

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