Missing Authentication for Critical Function Affecting mcp-pinot-server package, versions [,3.1.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published29 Jun 2026
- disclosed26 Jun 2026
- creditUnknown
Introduced: 26 Jun 2026
CVE-2026-49257 (opens in a new tab)How to fix?
Upgrade mcp-pinot-server to version 3.1.0 or higher.
Overview
mcp-pinot-server is an A production-grade MCP server for Apache Pinot
Affected versions of this package are vulnerable to Missing Authentication for Critical Function due to the default configuration where authentication is disabled and the HTTP server binds to all network interfaces. An attacker can gain unauthorized access to sensitive data, modify schemas and table configurations, and disrupt service availability by sending crafted HTTP requests to exposed endpoints. This is only exploitable if the server is started with OAuth authentication disabled and the HTTP bind address set to a non-loopback interface.