{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:kates:html2markdown:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "html2markdown",
            "vendor": "kates",
            "versions": [
              {
                "lessThanOrEqual": "1.0.2",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2020-26307",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-28T14:46:42.789614Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-28T14:48:11.164Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "html2markdown",
          "repo": "https://github.com/kates/html2markdown",
          "vendor": "kates",
          "versions": [
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              "lessThanOrEqual": "1.0.2",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eHTML2Markdown is a\u0026nbsp;\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eJavascript implementation for converting HTML to Markdown text.\u003c/span\u003e\u003c/span\u003e\u0026nbsp;All available versions\u0026nbsp;\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003econtain one or more regular expressions that are vulnerable to \u003c/span\u003e\u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eRegular Expression Denial of Service (ReDoS). As of time of publication, no known patches are available.\u003c/span\u003e\u003c/span\u003e\u003cbr\u003e"
            }
          ],
          "value": "HTML2Markdown is a Javascript implementation for converting HTML to Markdown text. All available versions contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publication, no known patches are available."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "providerUrgency": "GREEN",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/U:Green",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333 Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-10-26T20:26:22.379Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
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      "references": [
        {
          "url": "https://securitylab.github.com/advisories/GHSL-2020-301-redos-HTML2Markdown/"
        },
        {
          "url": "https://github.com/kates/html2markdown/issues/13"
        }
      ],
      "source": {
        "advisory": "GHSL-2020-301",
        "discovery": "UNKNOWN"
      },
      "title": "GHSL-2020-301: Regular Expression Denial of Service (ReDoS) in HTML2Markdown",
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        "engine": "Vulnogram 0.2.0"
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    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2020-26307",
    "datePublished": "2024-10-26T20:26:22.379Z",
    "dateReserved": "2020-10-01T00:00:00.000Z",
    "dateUpdated": "2024-10-28T14:48:11.164Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.1"
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