MySQL MCP Server: Missing Origin/Host Validation in SSE Transport Enables Unauthenticated SQL Execution (DNS Rebinding / Direct Exposure)

SummaryIn SSE/HTTP transport mode, mysqlmcpserver constructs SseServerTransport without passing securitysettings. As a result, the MCP Python SDK's DNS-rebinding protection Origin/Host header validation is disabled; the Starlette application has no CORS or TrustedHost middleware; and the service...

CVE-2026-59971 MySQL MCP Server: Missing Origin/Host Validation in SSE Transport Enables Unauthenticated SQL Execution (DNS Rebinding / Direct Exposure)

MySQL MCP Server is a Model Context Protocol server that enables secure interaction with MySQL databases. Prior to 0.4.2, setting MCPTRANSPORT=sse causes src/mysqlmcpserver/server.py to construct SseServerTransport without securitysettings or enablednsrebindingprotection, while the Starlette rout...

CVE-2026-59971

CVE-2026-59971 is a CRITICAL (CVSS 10.0) vulnerability in MySQL MCP Server (designcomputer/mysql_mcp_server) prior to version 0.4.2 . When MCP_TRANSPORT=sse is set, the server constructs SseServerTransport without enabling DNS-rebinding protection, exposes unauthenticated Starlette routes (/, /ss...

EUVD-2026-78580

MySQL MCP Server is a Model Context Protocol server that enables secure interaction with MySQL databases. Prior to 0.4.2, setting MCPTRANSPORT=sse causes src/mysqlmcpserver/server.py to construct SseServerTransport without securitysettings or enablednsrebindingprotection, while the Starlette rout...

CVE-2026-57112

PraisonAI is a multi-agent teams system. From praisonaiagents 0.6.0 until 1.6.59 and PraisonAI 3.10.0 until 4.6.59, ToolsMCPServer.runsse in src/praisonai-agents/praisonaiagents/mcp/mcpserver.py mounts SseServerTransport on the legacy /sse and /messages/ endpoints without default Host, Origin, or...

EUVD-2026-78424

PraisonAI is a multi-agent teams system. From praisonaiagents 0.6.0 until 1.6.59 and PraisonAI 3.10.0 until 4.6.59, ToolsMCPServer.runsse in src/praisonai-agents/praisonaiagents/mcp/mcpserver.py mounts SseServerTransport on the legacy /sse and /messages/ endpoints without default Host, Origin, or...

CVE-2026-57112

PraisonAI (multi-agent teams system) has a legacy SSE transport flaw in ToolsMCPServer.run_sse() (affecting praisonaiagents 0.6.0–1.6.58 and praisonai 3.10.0–4.6.58). The /sse and /messages/ endpoints lack Origin , Host , and authentication validation, unlike the newer Streamable HTTP transport w...

CVE-2025-66414: Initialization of a Resource with an Insecure Default

MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. Prior to 1.24.0, The Model Context Protocol MCP TypeScript SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without...