CVE-2025-47912 (GCVE-0-2025-47912)
Vulnerability from cvelistv5
Published
2025-10-29 22:10
Modified
2025-10-29 22:10
Severity ?
CWE
Summary
The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed within square brackets. For example: "http://[::1]/". IPv4 addresses and hostnames must not appear within square brackets. Parse did not enforce this requirement.
References
Impacted products
Vendor Product Version
Go standard library net/url Version: 0   ≤
Version: 1.25.0   ≤
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "net/url",
          "product": "net/url",
          "programRoutines": [
            {
              "name": "parseHost"
            },
            {
              "name": "JoinPath"
            },
            {
              "name": "Parse"
            },
            {
              "name": "ParseRequestURI"
            },
            {
              "name": "URL.Parse"
            },
            {
              "name": "URL.UnmarshalBinary"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.24.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.25.2",
              "status": "affected",
              "version": "1.25.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Enze Wang, Jingcheng Yang and Zehui Miao of Tsinghua University"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed within square brackets. For example: \"http://[::1]/\". IPv4 addresses and hostnames must not appear within square brackets. Parse did not enforce this requirement."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-1286: Improper Validation of Syntactic Correctness of Input",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-29T22:10:13.435Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/75678"
        },
        {
          "url": "https://go.dev/cl/709857"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2025-4010"
        }
      ],
      "title": "Insufficient validation of bracketed IPv6 hostnames in net/url"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2025-47912",
    "datePublished": "2025-10-29T22:10:13.435Z",
    "dateReserved": "2025-05-13T23:31:29.597Z",
    "dateUpdated": "2025-10-29T22:10:13.435Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-47912\",\"sourceIdentifier\":\"security@golang.org\",\"published\":\"2025-10-29T23:16:18.187\",\"lastModified\":\"2025-10-30T15:03:13.440\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The Parse function permits values other than IPv6 addresses to be included in square brackets within the host component of a URL. RFC 3986 permits IPv6 addresses to be included within the host component, enclosed within square brackets. For example: \\\"http://[::1]/\\\". IPv4 addresses and hostnames must not appear within square brackets. Parse did not enforce this requirement.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://go.dev/cl/709857\",\"source\":\"security@golang.org\"},{\"url\":\"https://go.dev/issue/75678\",\"source\":\"security@golang.org\"},{\"url\":\"https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI\",\"source\":\"security@golang.org\"},{\"url\":\"https://pkg.go.dev/vuln/GO-2025-4010\",\"source\":\"security@golang.org\"}]}}"
  }
}


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