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CVE-2026-42389 Reject more queries with invalid header values

🗓️ 25 Jun 2026 13:16:45Reported by OXType 
cvelist
 cvelist
🔗 www.cve.org👁 30 Views

Hardens the 5.4.x branch by validating answers from authoritative servers and rejecting bad headers.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
freebsd
powerdns-recursor -- vulnerabilities
4 Apr 202600:00
freebsd
attackerkb
CVE-2026-42389
25 Jun 202613:16
attackerkb
cve
CVE-2026-42389
25 Jun 202613:16
cve
debiancve
CVE-2026-42389
25 Jun 202613:16
debiancve
euvd
EUVD-2026-39388
25 Jun 202613:16
euvd
nessus
FreeBSD : powerdns-recursor -- vulnerabilities (62c4ed54-73aa-11f1-910d-3c7c3fba4204)
29 Jun 202600:00
nessus
nessus
Linux Distros Unpatched Vulnerability : CVE-2026-42389
28 Jun 202600:00
nessus
nvd
CVE-2026-42389
25 Jun 202614:16
nvd
osv
CVE-2026-42389 Reject more queries with invalid header values
25 Jun 202613:16
osv
osv
DEBIAN-CVE-2026-42389
25 Jun 202614:16
osv
Rows per page
[
  {
    "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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