{"id":"CVE-2026-123602","aliases":[],"cve":{"records":[{"id":"CVE-2026-123602","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-11-06T01:00:16.506Z","published":"2026-11-08T01:38:30.008Z","modified":"2026-11-09T13:53:01.071Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-11-08T01:38:30.008Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-09T13:53:01.071Z"}],"references":[{"url":"https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-2hxp-x833-73f7","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/hickory-dns-recursor-ghost-domain-attack-via-child-side-ns-rrset-caching","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-672","description":"Operation on a Resource after Expiration or Release","source":"VulnCheck"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-09T13:52:49.951365Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Hickory DNS Recursor Ghost Domain Attack via Child-Side NS RRset Caching","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"The Hickory DNS recursor in all versions of hickory-recursor and in hickory-resolver 0.26.0-beta.1 before 0.26.2 (recursor feature) is vulnerable to ghost domain names attacks because it reuses child-side apex NS RRsets cached from zone NS queries for iterative resolution. By repeatedly querying a zone's NS records, an attacker keeps the stale RRset cached indefinitely, letting name servers whose delegation the parent revoked keep answering for the zone.","score":8.2,"severity":"high","published":"2026-11-08T01:38:30.008Z","modified":"2026-11-09T13:53:01.071Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"hickory-dns","name":"hickory-dns","platforms":[],"versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.26.0-alpha.1","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:cargo/hickory-recursor","packageIdentity":{"ecosystem":"crates.io","name":"hickory-recursor"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-123602"},{"vendor":"hickory-dns","name":"hickory-dns","platforms":[],"versions":[{"version":"0.26.0-beta.1","status":"affected","lessThan":"0.26.2","versionType":"semver"},{"version":"0.26.2","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:cargo/hickory-resolver","packageIdentity":{"ecosystem":"crates.io","name":"hickory-resolver"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-123602"}],"remediation":[],"references":["https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-2hxp-x833-73f7","https://www.vulncheck.com/advisories/hickory-dns-recursor-ghost-domain-attack-via-child-side-ns-rrset-caching"],"sources":[{"name":"CVE","id":"CVE-2026-123602","modified":"2026-11-09T13:53:01.071Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-123602"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.2},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","score":5.9}],"sourceAffected":[],"observedAt":"2026-11-09T14:00:53.118Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T01:55:30.737Z"},"coverage":[{"source":"NVD","status":"no-result","checkedAt":"2026-11-08T02:05:42.250Z","attemptedAt":"2026-11-08T02:05:42.250Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-11-08T02:05:41.271Z","attemptedAt":"2026-11-08T02:05:41.271Z"},{"source":"EUVD","status":"refresh-failed","attemptedAt":"2026-11-08T02:05:38.095Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-08T02:05:40.238Z","attemptedAt":"2026-11-08T02:05:40.238Z"}],"evidence":[],"aiSummary":{"text":"The Hickory DNS recursor in hickory-recursor and hickory-resolver 0.26.0-beta.1 before 0.26.2 is vulnerable to ghost domain attacks due to caching of child-side NS RRsets. An attacker can keep a stale RRset cached by repeatedly querying a zone's NS records. This allows name servers to answer for a zone after delegation revocation.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-08T02:06:40.988Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-123602"}]}}