PT-2026-60568 · Coredns · Coredns

CVE-2026-62994 · Published 2026-07-16 · Updated 2026-07-16

Mitre

CVSS v3.1

3.7

Low

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

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.

Fix

Improper Handling of Exceptional Conditions

Weakness Enumeration

CWE-755

CWE-248

Related Identifiers

CVE-2026-62994

Affected Products

Coredns

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-62994 · Security Note
• https://github.com/coredns/coredns/security/advisories/GHSA-74w3-63xv-x9mv · Note
• https://github.com/coredns/coredns/releases/tag/v1.14.5 · Note
• https://github.com/coredns/coredns/commit/ab318db7b4a3a19273852ed627f54888198c8efb · Note
• https://github.com/coredns/coredns/pull/8207 · Note