CVE-2026-49257

CRITICAL EPSS 38.9%
Published Jun 18, 20261w ago · Modified Jun 23, 20266d ago
10.0 CVSS 3.1
Critical
Find Similar
Published Jun 18, 2026 1w ago
Last Modified Jun 23, 2026 6d ago

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

CVSS Details

Base Score
10.0
Exploitability
3.9
Impact
6.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
38.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-306 Missing Authentication for Critical Function Authentication

References 4

  • github.com https://github.com/startreedata/mcp-pinot/commit/1c7d3f9cd384854bf72c127d230bdb32299475ad
  • github.com https://github.com/startreedata/mcp-pinot/issues/90
  • github.com https://github.com/startreedata/mcp-pinot/pull/95
  • github.com https://github.com/startreedata/mcp-pinot/security/advisories/GHSA-73cv-556c-w3g6

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.