{
  "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-2026-52684",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-52684",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-23T07:49:04.336Z",
    "updatedAt": "2026-07-23T14:00:17.742Z",
    "importedAt": "2026-10-24T01:58:14.884Z",
    "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": "Prefetch Feature Allows Persistent Ghost Domain Cache Poisoning Attack",
      "summary": "If the auth responds very slowly and the records expire in between, the capping of TTLs is not enforced for lack of data. This does not happen on regular resolve as then then the \nchild records are used immediately if not expired and thus valid, or the\n records are expired, and in that case not used.  So this case \ncan only happen if almost expired records are used to refresh the \nauthoritative NS records.",
      "affected": [
        {
          "vendor": "PowerDNS",
          "product": "Recursor",
          "packageName": "pdns-recursor",
          "collectionURL": "https://repo.powerdns.com/",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0.0.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.5.0"
            }
          ]
        }
      ]
    }
  }
}