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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History
Thu, 18 Jun 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 | |
| Title | mcp-pinot: Unauthenticated tool invocation via default oauth_enabled=False + host 0.0.0.0 bind | |
| Weaknesses | CWE-306 | |
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| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-18T21:01:10.984Z
Reserved: 2026-05-28T14:33:01.179Z
Link: CVE-2026-49257
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
Updated: 2026-06-18T22:30:16Z