GHSA-2R68-G678-7QR3 mcp-memory-service: OAuth read-only clients can write and delete memories through MCP tools/call

Summary The HTTP MCP JSON-RPC endpoint at /mcp requires only OAuth read scope for all requests, then dispatches tools/call directly to handlers that include mutating tools. A read-only OAuth client can call storememory and deletememory through MCP even though the corresponding REST endpoints...