{"cve":"CVE-2026-49257","nvd":{"published":"2026-06-18T21:16:29.780","modified":"2026-10-26T11:10:00.157","status":"Deferred","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","score":10.0},"cwes":["CWE-306"],"references":["https://github.com/startreedata/mcp-pinot/commit/1c7d3f9cd384854bf72c127d230bdb32299475ad","https://github.com/startreedata/mcp-pinot/issues/90","https://github.com/startreedata/mcp-pinot/pull/95","https://github.com/startreedata/mcp-pinot/security/advisories/GHSA-73cv-556c-w3g6","https://github.com/startreedata/mcp-pinot/security/advisories/GHSA-73cv-556c-w3g6"],"products":[],"source":"nvd","synced_at":"2026-10-26T11:33:08.859761529+00:00"},"epss":{"cve":"CVE-2026-49257","score":0.0093,"percentile":0.60333,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-73cv-556c-w3g6","url":"https://osv.dev/vulnerability/GHSA-73cv-556c-w3g6","summary":"mcp-pinot: Unauthenticated tool invocation via default oauth_enabled=False + host 0.0.0.0 bind","modified":"2026-06-29T12:26:18.707917787Z","packages":[{"ecosystem":"PyPI","name":"mcp-pinot-server","purl":"pkg:pypi/mcp-pinot-server","ranges":["<3.1.0"],"fixed":["3.1.0"]}]},{"id":"PYSEC-2026-410","url":"https://osv.dev/vulnerability/PYSEC-2026-410","summary":"mcp-pinot: Unauthenticated tool invocation via default oauth_enabled=False + host 0.0.0.0 bind","modified":"2026-07-13T16:15:28.190826335Z","packages":[{"ecosystem":"PyPI","name":"mcp-pinot-server","purl":"pkg:pypi/mcp-pinot-server","ranges":["<3.1.0"],"fixed":["3.1.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}