CVE-2026-34237

CVE-2026-34237 affects MCP Java SDK. A hardcoded wildcard CORS configuration (Access-Control-Allow-Origin: *) existed in versions before 0.83.0, 1.0.1, and 1.1.1, allowing cross-origin requests to server endpoints (including SSE paths). The issue has been patched in those versions (0.83.0, 1.0.1,...

CVE-2026-35568

The CVE-2026-35568 entry corresponds to a DNS rebinding vulnerability in the MCP Java SDK (official Java SDK for Model Context Protocol servers/clients). Prior to version 1.0.0, the java-sdk did not validate the Origin header, enabling an attacker-controlled webpage on local or adjacent networks ...