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CVE-2026-35501

🗓️ 21 Oct 2026 08:56:55Reported by NLnet LabsType 
cve
 cve
🔗 web.nvd.nist.gov👁 11 Views

Unbound DNSSEC validator accepts forged NSEC records, bypassing island trust anchors.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
freebsd
FreeBSD
Unbound -- Multiple vulnerabilities
21 Oct 202600:00
–freebsd
alpinelinux
AlpineLinux
CVE-2026-35501
21 Oct 202608:56
–alpinelinux
circl
Circl
CVE-2026-35501
21 Oct 202608:57
–circl
cvelist
Cvelist
CVE-2026-35501 Bypass of a configured island trust anchor underneath an insecure parent from an atacker-controlled NSEC record.
21 Oct 202608:56
–cvelist
debiancve
Debian CVE
CVE-2026-35501
21 Oct 202608:56
–debiancve
euvd
EUVD
EUVD-2026-107151
21 Oct 202608:56
–euvd
nvd
NVD
CVE-2026-35501
21 Oct 202609:17
–nvd
osv_debian
osv_debian
DEBIAN-CVE-2026-35501
21 Oct 202618:47
–osv_debian
osv_echo
osv_echo
ECHO-BC3C-40D7-60F2
21 Oct 202622:57
–osv_echo
ptsecurity
Positive Technologies
PT-2026-120506
21 Oct 202600:00
–ptsecurity
[
  {
    "vendor": "NLnet Labs",
    "product": "Unbound",
    "versions": [
      {
        "version": "1.0.1",
        "status": "affected",
        "lessThan": "1.26.2",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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21 Oct 2026 09:17Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.13.7
EPSS0.0011
11