{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-107353",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-107353",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-10-07T19:35:15.351Z",
    "updatedAt": "2026-10-07T20:37:09.233Z",
    "importedAt": "2026-10-24T01:57:50.502Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "traverse: set() can write to built-in prototypes via an untrusted path",
      "summary": "traverse (npm) versions 0.3.6 through 0.3.9, 0.4.0 through 0.4.6, 0.5.0 through 0.5.2, and 0.6.0 through 0.6.11 allow prototype pollution through set(). When the path passed to set() crosses a primitive value, the next path segment is resolved on that primitive's built-in prototype, so an application that passes an untrusted path to set() lets an attacker add or overwrite properties of String.prototype, Number.prototype, or Boolean.prototype using plain JSON data, for example traverse({ name: 'bob' }).set(['name', '__proto__', 'polluted'], 'yes'). Object.prototype was reachable only with a non-data path segment, such as an object whose toString returns a different value on each call, or through a Proxy that accepts an assignment without storing it. This is fixed in 0.3.10, 0.4.7, 0.5.3, and 0.6.12.",
      "affected": [
        {
          "vendor": "ljharb",
          "product": "traverse",
          "packageName": "traverse",
          "collectionURL": "https://www.npmjs.com",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0.3.6",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "0.3.10"
            },
            {
              "version": "0.4.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "0.4.7"
            },
            {
              "version": "0.5.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "0.5.3"
            },
            {
              "version": "0.6.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "0.6.12"
            }
          ]
        }
      ]
    }
  }
}