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CoreDNS

CoreDNS

Flexible and extensible DNS server commonly used for service discovery in Kubernetes.

Current version
Last checked: 2026-10-20

1.14.7

Release date
August 19, 2026
Security status
2 high-severity CVEs tracked in the last 90 days. Current version not affected.

Source

GitHub API

Public release notes are linked for the latest stored release.

Release history

See the latest published releases stored for this product.

Version Published Notes
1.14.7 2026-08-19 Release Notes

Vulnerability tracking

versionPing monitors CVEs for this product. Matching CVEs are listed below. We only display CVEs with a CVSS score of 7.0 or higher that were published within the last 90 days.

Affected status is inferred from published affected version ranges where available. Always verify against the vendor advisory before making production decisions.

CVE Severity Published Status Summary
CVE-2026-86003 HIGH (7.5) 2026-09-16 Current versionnot affected

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 without the dns.DefaultMsgAcceptFunc request policy used by UDP, TCP, and DNS-over-TLS. An unauthenticated client can send an RFC 2136 UPDATE that the proxy or forward plugin passes unchanged to an update-capable upstream. If that upstream trusts CoreDNS's source address or connection and does not require an attacker-unknown end-to-end TSIG, the request appears to originate from CoreDNS and can add, replace, or delete DNS records, redirect traffic, take over names, alter mail routing, or disrupt the writable zone. This issue is fixed in version 1.14.7.

Affected versions
  • < 1.14.7
CVE-2026-82399 HIGH (7.5) 2026-09-16 Current versionnot affected

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 request paths in plugin/pkg/doh/doh.go, core/dnsserver/server_quic.go, and core/dnsserver/server_grpc.go call dns.Msg.Unpack on attacker-controlled DNS section counts before dns.DefaultMsgAcceptFunc validates the fixed header. An unauthenticated client can use DNS name compression and excessive section counts to amplify allocation before the plugin chain, so plugin-level rate limiting cannot prevent concurrent requests from exhausting memory and terminating CoreDNS. The ordinary UDP and TCP listeners are not affected because they validate the header first. This issue is fixed in version 1.14.7.

Affected versions
  • < 1.14.7