{
  "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-2026-41539",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-41539",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-09T05:51:37.054Z",
    "updatedAt": "2026-10-19T02:05:08.428Z",
    "importedAt": "2026-10-24T01:58:08.712Z",
    "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": "QTS, QuTS hero",
      "summary": "A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to bypass security mechanisms or read application data.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.9.3492 build 20260507 and later\nQuTS hero h5.2.9.3499 build 20260514 and later\nQuTS hero h5.3.4.3500 build 20260520 and later\nQuTS hero h6.0.0.3500 build 20260520 and later",
      "affected": [
        {
          "vendor": "QNAP Systems Inc.",
          "product": "QTS",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "5.2.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "5.2.9.3492 build 20260507"
            }
          ]
        },
        {
          "vendor": "QNAP Systems Inc.",
          "product": "QuTS hero",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "h5.2.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "h5.2.9.3499 build 20260514"
            },
            {
              "version": "h5.3.0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "h5.3.4.3500 build 20260520"
            },
            {
              "version": "?",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "h6.0.0.3500 build 20260520"
            }
          ]
        }
      ]
    }
  }
}