CVEvulnerability

CVE-2026-62994

3.7 LOW Published 2026-07-16 Modified 2026-07-22 Official page ↗
Status
Analyzed
Published
2026-07-16
Last modified
2026-07-22
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.7 LOW — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
CWE-248, CWE-755

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 configurations

• coredns.io coredns (>= 1.9.4 < 1.14.5)

Related

Weakness · CWE (2)

  • CWE-248 Uncaught Exception weakness
  • CWE-755 Improper Handling of Exceptional Conditions weakness

References