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CVE-2026-52690 Spoofed answers can mark an authoritative non-EDNS capable

🗓️ 25 Jun 2026 13:01:40Reported by OXType 
cvelist
 cvelist
🔗 www.cve.org👁 2 Views

Spoofed recursor replies may mark authoritative servers as not supporting extension mechanisms for DNS, breaking DNS security.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-52690
25 Jun 202613:01
attackerkb
CVE
CVE-2026-52690
25 Jun 202613:01
cve
EUVD
EUVD-2026-39360
25 Jun 202613:01
euvd
NVD
CVE-2026-52690
25 Jun 202614:16
nvd
Vulnrichment
CVE-2026-52690 Spoofed answers can mark an authoritative non-EDNS capable
25 Jun 202613:01
vulnrichment
[
  {
    "vendor": "PowerDNS",
    "product": "Recursor",
    "collectionURL": "https://repo.powerdns.com/",
    "packageName": "pdns-recursor",
    "repo": "https://github.com/PowerDNS/pdns",
    "modules": [
      "Outgoing EDNS handling"
    ],
    "programFiles": [
      "syncres.cc"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "5.2.0",
        "lessThan": "5.2.11",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.3.0",
        "lessThan": "5.3.8",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.4.0",
        "lessThan": "5.4.3",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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