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6.1 Medium

CVE-2026-34237 MCP Java SDK is the official Java SDK for Model Context Protocol servers and clients

Description

MCP Java SDK is the official Java SDK for Model Context Protocol servers and clients. Prior to versions 0.83.0, 1.0.1, and 1.1.1, there is a hardcoded wildcard CORS vulnerability. This issue has been patched in versions 0.83.0, 1.0.1, and 1.1.1.

Affected products and versions

Product Affected versions Fixed in
java-sdk 1.1 1.1.0 → < 1.1.1 1.1.1
java-sdk 1.0 1.0.0 → < 1.0.1 1.0.1
java-sdk 0.18 earliest → < 0.18.3 0.18.3

References

Timeline

  1. Published
  2. Last modified

Other CVEs of java-sdk

The 2 CVEs of java-sdk →
CVE-2026-35568 MCP Java SDK is the official Java SDK for Model Context Protocol servers and clients 7.6 High
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