Auth bypass in Startreedata Mcp-pinot
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…
Vulnerability class: Broken Authentication
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Startreedata Mcp-pinot — versions < 3.1.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-49257?
- CVE-2026-49257 is a critical-severity vulnerability in Startreedata Mcp-pinot, classified under Missing Authentication for Critical Function. CVSS score: 10.0/10. Published 2026-06-18.
- How severe is CVE-2026-49257?
- Critical severity. CVSS v3 base score is 10.0 out of 10.