PYSEC-2026-3534 PraisonAI ToolsMCPServer legacy SSE transport accepts attacker Host/Origin and exposes registered tools

PraisonAI ToolsMCPServer legacy SSE transport accepts attacker Host/Origin and exposes registered tools Summary praisonaiagents.mcp.ToolsMCPServer.runsse builds a Starlette MCP HTTP+SSE server around mcp.server.sse.SseServerTransport. The server exposes /sse and /messages/, but it does not valida...

PT-2026-50534

Name of the Vulnerable Software and Affected Versions Network-AI versions prior to 5.7.2 Description The MCP SSE server allows unauthenticated cross-origin MCP tool invocation because the server defaults to an empty secret and the isAuthorized function returns true when the secret is empty. While...

@yoda.digital/gitlab-mcp-server's SSE transport has no authentication and wildcard CORS, exposing all 86 GitLab tools

SSE Transport Has No Authentication and Wildcard CORS, Exposing All 86 GitLab Tools Including Destructive Operations A review of mcp-gitlab-server at commit 80a7b4cf3fba6b55389c0ef491a48190f7c8996a uncovered that the SSE HTTP transport — advertised in the README and comparison table as a...