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CVSS 10.0CVSS 10.0 · CRITICAL

CVE-2026-49257

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

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Análisis

mcp-pinot permite el acceso total de lectura y escritura a clusters de Apache Pinot debido a que el servidor HTTP carece de autenticación por defecto y escucha en todas las interfaces de red. Cualquier atacante con acceso a la red puede ejecutar consultas SQL arbitrarias, crear esquemas y modificar configuraciones de tablas. Es imperativo actualizar a la versión 3.1.0 para evitar la exposición total de la base de datos vinculada.

Roles relevantes

PythonBackendSqlIADataScienceCyberSecurity

Severidad

Puntaje: 10.0(CRITICAL)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
AV: NETWORK
AC: LOW
PR: NONE
UI: NONE
S: CHANGED
C: HIGH
I: HIGH
A: HIGH
Tipo de falla (CWE): CWE-306

EPSS

Probabilidad de explotación (próx. 30 días): 0.0050 (0.5%)
Percentil: 38.7%
EPSS: 2026-06-23

Descripción técnica

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

Publicada: 18/6/2026, 21:16:29
Última modificación: 23/6/2026, 16:06:25

Referencias

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