p PatchFirst

CVE-2026-49257

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

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 table-config mutation, are reachable by any network-adjacent caller. The server proxies these calls using server-side Pinot credentials, producing a confused-deputy condition that yields full read/write access to the configured Pinot cluster. This issue has been fixed in version 3.1.0

CVSS 10.0 · Critical · EPSS 0.6% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • mcp-pinot

    Versions
    • < 3.1.0: Affected

    No fix published

  • mcp-pinot-server PyPI

    Versions
    • 0.1.0
    • 1.0.0
    • 1.1.0
    • 2.0.0
    • 2.1.0
    • 2.2.0
    • 2.3.0
    • 3.0.0
    • 3.0.1
    Affected ranges
    • ECOSYSTEM: < 3.1.0

    Update to 3.1.0

Original sources

Check your server →