data/osv/GO-2025-4175.json

{
  "schema_version": "1.3.1",
  "id": "GO-2025-4175",
  "modified": "0001-01-01T00:00:00Z",
  "published": "0001-01-01T00:00:00Z",
  "aliases": [
    "CVE-2025-61727"
  ],
  "summary": "Improper application of excluded DNS name constraints when verifying wildcard names in crypto/x509",
  "details": "An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. For example a constraint that excludes the subdomain test.example.com does not prevent a leaf certificate from claiming the SAN *.example.com.",
  "affected": [
    {
      "package": {
        "name": "stdlib",
        "ecosystem": "Go"
      },
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.24.11"
            },
            {
              "introduced": "1.25.0"
            },
            {
              "fixed": "1.25.5"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "imports": [
          {
            "path": "crypto/x509",
            "symbols": [
              "Certificate.Verify"
            ]
          }
        ]
      }
    }
  ],
  "references": [
    {
      "type": "FIX",
      "url": "https://go.dev/cl/723900"
    },
    {
      "type": "REPORT",
      "url": "https://go.dev/issue/76442"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/golang-announce/c/8FJoBkPddm4"
    }
  ],
  "database_specific": {
    "url": "https://pkg.go.dev/vuln/GO-2025-4175",
    "review_status": "REVIEWED"
  }
}