{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
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    "CVE_data_meta": {
      "ID": "CVE-2021-31409",
      "ASSIGNER": "security@vaadin.com",
      "DATE_PUBLIC": "2021-04-30T08:17:00.000Z",
      "TITLE": "Server session is not invalidated when logout() helper method of Authentication module is used in Vaadin 18-19",
      "AKA": "",
      "STATE": "PUBLIC"
    },
    "source": {
      "defect": [],
      "advisory": "",
      "discovery": "EXTERNAL"
    },
    "affects": {
      "vendor": {
        "vendor_data": [
          {
            "vendor_name": "Vaadin",
            "product": {
              "product_data": [
                {
                  "product_name": "Vaadin",
                  "version": {
                    "version_data": [
                      {
                        "version_name": "",
                        "version_affected": ">=",
                        "version_value": "8.0.0",
                        "platform": ""
                      },
                      {
                        "version_name": "",
                        "version_affected": "<=",
                        "version_value": "8.12.4",
                        "platform": ""
                      }
                    ]
                  }
                },
                {
                  "product_name": "vaadin-compatibility-server",
                  "version": {
                    "version_data": [
                      {
                        "version_name": "",
                        "version_affected": ">=",
                        "version_value": "8.0.0",
                        "platform": ""
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                      {
                        "version_name": "",
                        "version_affected": "<=",
                        "version_value": "8.12.4",
                        "platform": ""
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        ]
      }
    },
    "problemtype": {
      "problemtype_data": [
        {
          "description": [
            {
              "lang": "eng",
              "value": "CWE-400 Uncontrolled Resource Consumption"
            }
          ]
        }
      ]
    },
    "description": {
      "description_data": [
        {
          "lang": "eng",
          "value": "Unsafe validation RegEx in EmailValidator component in com.vaadin:vaadin-compatibility-server versions 8.0.0 through 8.12.4 (Vaadin versions 8.0.0 through 8.12.4) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses."
        }
      ]
    },
    "references": {
      "reference_data": [
        {
          "refsource": "CONFIRM",
          "url": "https://vaadin.com/security/cve-2021-31409",
          "name": "https://vaadin.com/security/cve-2021-31409"
        },
        {
          "refsource": "CONFIRM",
          "url": "https://github.com/vaadin/framework/issues/12240",
          "name": "https://github.com/vaadin/framework/issues/12240"
        },
        {
          "refsource": "CONFIRM",
          "url": "https://github.com/vaadin/framework/pull/12241",
          "name": "https://github.com/vaadin/framework/pull/12241"
        }
      ]
    },
    "configuration": [],
    "impact": {
      "cvss": {
        "version": "3.1",
        "attackVector": "NETWORK",
        "attackComplexity": "LOW",
        "privilegesRequired": "NONE",
        "userInteraction": "NONE",
        "scope": "UNCHANGED",
        "confidentialityImpact": "NONE",
        "integrityImpact": "NONE",
        "availabilityImpact": "HIGH",
        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "baseScore": 7.5,
        "baseSeverity": "HIGH"
      }
    },
    "exploit": [],
    "work_around": [],
    "solution": [],
    "credit": [
      {
        "lang": "eng",
        "value": "This issue was discovered and responsibly reported by Stefan Penndorf."
      }
    ]
  }