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3.7 Low

CVE-2026-62994 CoreDNS is a DNS server written in Go

Description

CoreDNS is a DNS server written in Go. From 1.9.4 until 1.14.5, a network DNS client allowed to request AXFR for a CoreDNS zone can trigger a panic when CoreDNS is configured with k8s_external headless-service zone transfers and Kubernetes contains a headless service endpoint with no declared ports; plugin/kubernetes/object/endpoint.go creates Port: -1, plugin/k8s_external/msg_to_dns.go skips that service, plugin/k8s_external/transfer.go sends an empty []dns.RR batch, and plugin/transfer/transfer.go indexes records[0] without checking the batch is non-empty. This issue is fixed in version 1.14.5.

Affected products and versions

Product Affected versions Fixed in
coredns 1.9 1.9.4 → < 1.14.5 1.14.5

References

Timeline

  1. Published
  2. Last modified

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CVE-2026-86003 CoreDNS is a DNS server written in Go 7.5 High CVE-2026-82399 CoreDNS is a DNS server written in Go 7.5 High CVE-2026-62299 CoreDNS is a DNS server written in Go 5.3 Medium CVE-2026-62309 CoreDNS is a DNS server written in Go 7.5 High
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