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

CVSS 10.0 · Critical

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProductVersion RangeStatus
startreedatamcp-pinot< 3.1.0affected
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I. Basic Information for CVE-2026-49257

Vulnerability Information
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Vulnerability Title
mcp-pinot: Unauthenticated tool invocation via default oauth_enabled=False + host 0.0.0.0 bind
Source: NVD (National Vulnerability Database)
Vulnerability Description
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
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键功能的认证机制缺失
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
startreedatamcp-pinot < 3.1.0 -

II. Public POCs for CVE-2026-49257

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III. Intelligence Information for CVE-2026-49257

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Patches & Fixes for CVE-2026-49257 (1)

Vendor Advisories for CVE-2026-49257 (1)

News Coverage for CVE-2026-49257 (1)

IV. Related Vulnerabilities

Same weakness: CWE-306

V. Comments for CVE-2026-49257

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