data/osv/GO-2026-5607.json

{
  "schema_version": "1.3.1",
  "id": "GO-2026-5607",
  "modified": "0001-01-01T00:00:00Z",
  "published": "0001-01-01T00:00:00Z",
  "aliases": [
    "CVE-2026-44430",
    "GHSA-r48c-v28r-pf6v"
  ],
  "summary": "MCP Registry has an unauthenticated SSRF: HTTP namespace verification dials 6to4 / NAT64 / site-local IPv6 addresses, bypassing private-address allowlist in github.com/modelcontextprotocol/registry",
  "details": "MCP Registry has an unauthenticated SSRF: HTTP namespace verification dials 6to4 / NAT64 / site-local IPv6 addresses, bypassing private-address allowlist in github.com/modelcontextprotocol/registry",
  "affected": [
    {
      "package": {
        "name": "github.com/modelcontextprotocol/registry",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.7"
            }
          ]
        }
      ],
      "ecosystem_specific": {}
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-r48c-v28r-pf6v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44430"
    },
    {
      "type": "FIX",
      "url": "https://github.com/modelcontextprotocol/registry/commit/f5f40bd98084466eaf18fe48ea62a0d534caa774"
    },
    {
      "type": "FIX",
      "url": "https://github.com/modelcontextprotocol/registry/pull/1250"
    },
    {
      "type": "WEB",
      "url": "https://github.com/modelcontextprotocol/registry/releases/tag/v1.7.7"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2026-5607",
    "review_status": "UNREVIEWED"
  }
}