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CVE-2026-42389

🗓️ 25 Jun 2026 13:16:45Reported by OXType 
cve
 cve
🔗 web.nvd.nist.gov👁 5 Views

Fixes extra hardening for five point four branch by validating answers from authoritative servers.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-42389
25 Jun 202613:16
attackerkb
Cvelist
CVE-2026-42389 Reject more queries with invalid header values
25 Jun 202613:16
cvelist
Debian CVE
CVE-2026-42389
25 Jun 202613:16
debiancve
EUVD
EUVD-2026-39388
25 Jun 202613:16
euvd
NVD
CVE-2026-42389
25 Jun 202614:16
nvd
OSV
DEBIAN-CVE-2026-42389
25 Jun 202614:48
osv
Positive Technologies
PT-2026-52392
25 Jun 202600:00
ptsecurity
Vulnrichment
CVE-2026-42389 Reject more queries with invalid header values
25 Jun 202613:16
vulnrichment
[
  {
    "vendor": "PowerDNS",
    "product": "Recursor",
    "collectionURL": "https://repo.powerdns.com/",
    "packageName": "pdns-recursor",
    "repo": "https://github.com/PowerDNS/pdns",
    "modules": [
      "Web Server"
    ],
    "programFiles": [
      "pdns_recursor.cc"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "5.4.0",
        "lessThan": "5.4.3",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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25 Jun 2026 16:16Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.3
SSVC
5