{"id":"CVE-2026-62994","sourceIdentifier":"security-advisories@github.com","published":"2026-07-16T20:16:47.657","lastModified":"2026-07-22T20:14:36.067","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"coredns","product":"coredns","versions":[{"version":">= 1.9.4, < 1.14.5","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":3.7,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":2.2,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-17T11:12:32.909197Z","id":"CVE-2026-62994","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-248"},{"lang":"en","value":"CWE-755"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:coredns.io:coredns:*:*:*:*:*:*:*:*","versionStartIncluding":"1.9.4","versionEndExcluding":"1.14.5","matchCriteriaId":"0ED604BC-2C2E-4A97-AD85-519EA50F646B"}]}]}],"references":[{"url":"https://github.com/coredns/coredns/commit/ab318db7b4a3a19273852ed627f54888198c8efb","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/coredns/coredns/pull/8207","source":"security-advisories@github.com","tags":["Issue Tracking","Patch"]},{"url":"https://github.com/coredns/coredns/releases/tag/v1.14.5","source":"security-advisories@github.com","tags":["Release Notes"]},{"url":"https://github.com/coredns/coredns/security/advisories/GHSA-74w3-63xv-x9mv","source":"security-advisories@github.com","tags":["Exploit","Third Party Advisory"]},{"url":"https://github.com/coredns/coredns/security/advisories/GHSA-74w3-63xv-x9mv","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Third Party Advisory"]}]}