{"id":"CVE-2026-123598","aliases":[],"cve":{"records":[{"id":"CVE-2026-123598","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-11-06T01:00:16.506Z","published":"2026-11-08T01:38:27.111Z","modified":"2026-11-09T13:53:29.625Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-11-08T01:38:27.111Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-09T13:53:29.625Z"}],"references":[{"url":"https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-29q9-p769-j8gq","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/hickory-dns-0.25.0-through-0.26.0-alpha.1-dnssec-bogus-answer-cache-poisoning","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-613","description":"Insufficient Session Expiration","source":"VulnCheck"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-09T13:53:19.210788Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Hickory DNS 0.25.0 through 0.26.0-alpha.1 DNSSEC Bogus Answer Cache Poisoning","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"The validating recursor in Hickory DNS hickory-recursor 0.25.0 through 0.26.0-alpha.1, hickory-resolver 0.26.0-alpha.1 before 0.26.2, and hickory-net 0.26.0-beta.1 before 0.26.2 caches DNSSEC-bogus answers using the untrusted, attacker-supplied record TTL (capped at 24 hours) instead of a short validation-failure TTL. A remote attacker who spoofs a single authoritative response with an invalid signature and a long TTL can keep the bogus result cached for up to 24 hours.","score":6.3,"severity":"medium","published":"2026-11-08T01:38:27.111Z","modified":"2026-11-09T13:53:29.625Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"hickory-dns","name":"hickory-dns","platforms":[],"versions":[{"version":"0.25.0","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-2026-123598"},{"vendor":"hickory-dns","name":"hickory-dns","platforms":[],"versions":[{"version":"0.26.0-alpha.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-2026-123598"},{"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-net","packageIdentity":{"ecosystem":"crates.io","name":"hickory-net"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-123598"}],"remediation":[],"references":["https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-29q9-p769-j8gq","https://www.vulncheck.com/advisories/hickory-dns-0.25.0-through-0.26.0-alpha.1-dnssec-bogus-answer-cache-poisoning"],"sources":[{"name":"CVE","id":"CVE-2026-123598","modified":"2026-11-09T13:53:29.625Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-123598"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":6.3},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","score":3.7}],"sourceAffected":[],"observedAt":"2026-11-09T14:00:51.578Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T01:25:32.844Z"},"coverage":[{"source":"NVD","status":"no-result","checkedAt":"2026-11-08T02:10:38.563Z","attemptedAt":"2026-11-08T02:10:38.563Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-11-08T02:10:38.708Z","attemptedAt":"2026-11-08T02:10:38.708Z"},{"source":"EUVD","status":"no-result","checkedAt":"2026-11-08T02:10:39.702Z","attemptedAt":"2026-11-08T02:10:39.702Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-08T02:10:38.633Z","attemptedAt":"2026-11-08T02:10:38.633Z"}],"evidence":[],"aiSummary":{"text":"Hickory DNS versions 0.25.0 through 0.26.0-alpha.1 cache DNSSEC-bogus answers for up to 24 hours, allowing a remote attacker to spoof a single authoritative response. The attacker must supply an invalid signature and a long TTL.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-08T02:06:46.432Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-123598"}]}}