EUVD-2026-45018Published

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 …

Exact source revision recorded 1 Nov 2026 11:27:06 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

euvd · EUVD-2026-45018

Published

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.

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Jul 16, 2026, 7:39:05 PM

dateUpdated: Jul 17, 2026, 11:12:51 AM

1 related source bulletins · separate from aliases

msrc_CVE-2026-62994: CoreDNS `k8s_external` headless AXFR can emit an empty transfer batch that panics the `transfer` plugin

CVE-2026-62994

Source published: Jul 16, 2026, 7:39:05 PM (timezone not stated)
Source modified: Jul 17, 2026, 11:12:51 AM (timezone not stated)
Observed here: 1 Nov 2026 11:27:06 UTC
Source terms: ENISA EUVD · source terms and attribution apply

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L