{
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      {
        "metrics": [
          {
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              "content": {
                "id": "CVE-2026-93749",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-22T15:16:45.824265Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/source-map-js",
          "product": "source-map-js",
          "vendor": "7rulnik",
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              "version": "0",
              "versionType": "semver"
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      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Wayde Shi (PayPal Cyber Security Team)"
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      ],
      "datePublic": "2026-09-17T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
          "value": "source-map-js through 1.2.1 fails to validate the per-section offset line value in indexed source maps, allowing attackers to specify arbitrary numeric values. Attackers can supply extremely large offset line values that cause synchronous event loop blocking for extended periods, preventing the service from handling other requests."
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            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
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            "integrityImpact": "NONE",
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            "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": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1284",
              "description": "Improper Validation of Specified Quantity in Input",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-24T14:23:08.247Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
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      "references": [
        {
          "name": "GitHub Issue #76",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/7rulnik/source-map-js/issues/76"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/7rulnik/source-map-js"
        },
        {
          "name": "line-padding loop driven by the unvalidated section offset line",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/7rulnik/source-map-js/blob/c1cd8904bb7bd0c7fb5879fcda48134d82a27934/lib/source-node.js#L115-L118"
        },
        {
          "name": "VulnCheck Advisory: source-map-js through 1.2.1 Event Loop Denial of Service",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/source-map-js-through-1.2.1-event-loop-denial-of-service"
        }
      ],
      "title": "source-map-js through 1.2.1 Event Loop Denial of Service",
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-93749",
    "datePublished": "2026-09-18T17:51:34.972Z",
    "dateReserved": "2026-09-18T16:30:17.433Z",
    "dateUpdated": "2026-09-24T14:23:08.247Z",
    "state": "PUBLISHED"
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}