{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.0",
  "cveMetadata": {
    "cveId": "CVE-2025-22870"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc"
      },
      "title": "HTTP Proxy bypass using IPv6 Zone IDs in golang.org/x/net",
      "descriptions": [
        {
          "lang": "en",
          "value": "Matching of hosts against proxy patterns can improperly treat an IPv6 zone ID as a hostname component. For example, when the NO_PROXY environment variable is set to \"*.example.com\", a request to \"[::1%25.example.com]:80` will incorrectly match and not be proxied."
        }
      ],
      "affected": [
        {
          "vendor": "Go standard library",
          "product": "net/http",
          "collectionURL": "https://pkg.go.dev",
          "packageName": "net/http",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.23.7",
              "status": "affected",
              "versionType": "semver"
            },
            {
              "version": "1.24.0-0",
              "lessThan": "1.24.1",
              "status": "affected",
              "versionType": "semver"
            }
          ],
          "programRoutines": [
            {
              "name": "envProxyFunc"
            },
            {
              "name": "ProxyFromEnvironment"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "golang.org/x/net",
          "product": "golang.org/x/net/http/httpproxy",
          "collectionURL": "https://pkg.go.dev",
          "packageName": "golang.org/x/net/http/httpproxy",
          "versions": [
            {
              "version": "0",
              "lessThan": "0.36.0",
              "status": "affected",
              "versionType": "semver"
            }
          ],
          "programRoutines": [
            {
              "name": "config.useProxy"
            },
            {
              "name": "domainMatch.match"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "golang.org/x/net",
          "product": "golang.org/x/net/proxy",
          "collectionURL": "https://pkg.go.dev",
          "packageName": "golang.org/x/net/proxy",
          "versions": [
            {
              "version": "0",
              "lessThan": "0.36.0",
              "status": "affected",
              "versionType": "semver"
            }
          ],
          "programRoutines": [
            {
              "name": "PerHost.dialerForRequest"
            },
            {
              "name": "PerHost.AddFromString"
            },
            {
              "name": "Dial"
            },
            {
              "name": "FromEnvironment"
            },
            {
              "name": "FromEnvironmentUsing"
            },
            {
              "name": "PerHost.Dial"
            },
            {
              "name": "PerHost.DialContext"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-115 Misinterpretation of Input"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://go.dev/cl/654697"
        },
        {
          "url": "https://go.dev/issue/71984"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/4t3lzH3I0eI/m/b42ImqrBAQAJ"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2025-3503"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Juho Forsén of Mattermost"
        }
      ]
    }
  }
}