CVE-2022-21681 (GCVE-0-2022-21681)
Vulnerability from cvelistv5
Published
2022-01-14 00:00
Modified
2025-04-22 18:33
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-1333 - Inefficient Regular Expression Complexity
Summary
Marked is a markdown parser and compiler. Prior to version 4.0.10, the regular expression `inline.reflinkSearch` may cause catastrophic backtracking against some strings and lead to a denial of service (DoS). Anyone who runs untrusted markdown through a vulnerable version of marked and does not use a worker with a time limit may be affected. This issue is patched in version 4.0.10. As a workaround, avoid running untrusted markdown through marked or run marked on a worker thread and set a reasonable time limit to prevent draining resources.
References
Impacted products
Vendor Product Version
markedjs marked Version: < 4.0.10
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            "url": "https://github.com/markedjs/marked/security/advisories/GHSA-5v2h-r2cx-5xgj"
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            "url": "https://github.com/markedjs/marked/commit/8f806573a3f6c6b7a39b8cdb66ab5ebb8d55a5f5"
          },
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            "tags": [
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AIXDMC3CSHYW3YWVSQOXAWLUYQHAO5UX/"
          }
        ],
        "title": "CVE Program Container"
      },
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        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2022-21681",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-22T15:42:21.459933Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2025-04-22T18:33:29.916Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    "cna": {
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          "product": "marked",
          "vendor": "markedjs",
          "versions": [
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              "status": "affected",
              "version": "\u003c 4.0.10"
            }
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      "descriptions": [
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          "lang": "en",
          "value": "Marked is a markdown parser and compiler. Prior to version 4.0.10, the regular expression `inline.reflinkSearch` may cause catastrophic backtracking against some strings and lead to a denial of service (DoS). Anyone who runs untrusted markdown through a vulnerable version of marked and does not use a worker with a time limit may be affected. This issue is patched in version 4.0.10. As a workaround, avoid running untrusted markdown through marked or run marked on a worker thread and set a reasonable time limit to prevent draining resources."
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      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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      "problemTypes": [
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          "descriptions": [
            {
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        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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          "url": "https://github.com/markedjs/marked/security/advisories/GHSA-5v2h-r2cx-5xgj"
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        },
        {
          "name": "FEDORA-2022-784d729f30",
          "tags": [
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AIXDMC3CSHYW3YWVSQOXAWLUYQHAO5UX/"
        }
      ],
      "source": {
        "advisory": "GHSA-5v2h-r2cx-5xgj",
        "discovery": "UNKNOWN"
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      "title": "Exponential catastrophic backtracking (ReDoS) in marked"
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    "datePublished": "2022-01-14T00:00:00.000Z",
    "dateReserved": "2021-11-16T00:00:00.000Z",
    "dateUpdated": "2025-04-22T18:33:29.916Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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