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CVE-2026-86003 CoreDNS DoH/DoQ/gRPC bypass UPDATE rejection enforced on UDP/TCP

🗓️ 16 Sep 2026 18:39:22Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 24 Views

CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and DNS-over-gRPC listeners in plugin/pkg/doh/doh.go, core/dnsserver/server_quic.go, and core/dnsserver/server_grpc.go call dns.Msg.Unpack ...

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Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-86003
16 Sep 202618:39
cve
euvd
EUVD
EUVD-2026-80989
16 Sep 202618:39
euvd
nvd
NVD
CVE-2026-86003
16 Sep 202619:17
nvd
redhatcve
RedhatCVE
CVE-2026-86003
16 Sep 202621:59
redhatcve
[
  {
    "vendor": "coredns",
    "product": "coredns",
    "versions": [
      {
        "version": "< 1.14.7",
        "status": "affected"
      }
    ]
  }
]

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16 Sep 2026 18:39Current
CVSS 3.17.5
EPSS0.00436
24