Improper Access Control

mcppinotserver is vulnerable to Improper Access Control. The vulnerability is due to the MCP server defaulting to an unauthenticated HTTP service bound to 0.0.0.0:8080, which allows an attacker on the network to access MCP tools and exploit the server's Pinot credentials to execute unauthorized S...

CVE-2026-49257 mcp-pinot: Unauthenticated tool invocation via default oauth_enabled=False + host 0.0.0.0 bind

mcp-pinot is a Python-based Model Context Protocol MCP server for interacting with Apache Pinot. In versions 3.0.1 and below, mcp-pinot defaults to running an HTTP MCP server bound to 0.0.0.0:8080 with no authentication enabled. All MCP tools, including SQL query execution, schema creation, and...