{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.1.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1c7d3f9cd384854bf72c127d230bdb32299475ad"
            }
          ],
          "repo": "https://github.com/startreedata/mcp-pinot",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-73cv-556c-w3g6"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49257.json"
  },
  "details": "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",
  "id": "CVE-2026-49257",
  "modified": "2026-07-15T01:48:54.591144054Z",
  "published": "2026-06-18T21:01:10.984Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49257.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/startreedata/mcp-pinot/security/advisories/GHSA-73cv-556c-w3g6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49257"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/startreedata/mcp-pinot/issues/90"
    },
    {
      "type": "FIX",
      "url": "https://github.com/startreedata/mcp-pinot/commit/1c7d3f9cd384854bf72c127d230bdb32299475ad"
    },
    {
      "type": "FIX",
      "url": "https://github.com/startreedata/mcp-pinot/pull/95"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "mcp-pinot: Unauthenticated tool invocation via default oauth_enabled=False + host 0.0.0.0 bind"
}