{"id":"CVE-2026-123589","aliases":[],"cve":{"records":[{"id":"CVE-2026-123589","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-11-06T00:57:31.045Z","published":"2026-11-08T01:38:20.968Z","modified":"2026-11-10T17:57:34.802Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-11-08T01:38:20.968Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-10T17:57:34.802Z"}],"references":[{"url":"https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-g8wg-4mwh-fjfv","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/hickory-dns-before-0.26.2-denial-of-service-via-missing-dns-over-quic-request-read-timeout","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","source":"CISA-ADP"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-10T16:29:33.285987Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Hickory DNS before 0.26.2 Denial of Service via Missing DNS-over-QUIC Request Read Timeout","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"The DNS-over-QUIC (DoQ) server in hickory-server (hickory-dns) before 0.26.2 does not apply any timeout when reading a request message from a QUIC stream, bypassing all configured timeouts. A remote unauthenticated client can open a connection and a request stream and hold it open indefinitely, consuming server resources and causing a denial of service.","score":6.9,"severity":"medium","published":"2026-11-08T01:38:20.968Z","modified":"2026-11-10T17:57:34.802Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"hickory-dns","name":"hickory-dns","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"0.26.2","versionType":"semver"},{"version":"0.26.2","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:cargo/hickory-server","packageIdentity":{"ecosystem":"crates.io","name":"hickory-server"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-123589"}],"remediation":[],"references":["https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-g8wg-4mwh-fjfv","https://www.vulncheck.com/advisories/hickory-dns-before-0.26.2-denial-of-service-via-missing-dns-over-quic-request-read-timeout"],"sources":[{"name":"CVE","id":"CVE-2026-123589","modified":"2026-11-10T17:57:34.802Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-123589"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","score":6.9},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3}],"sourceAffected":[],"observedAt":"2026-11-10T18:16:40.019Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T02:10:31.937Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-08T02:25:32.445Z","attemptedAt":"2026-11-08T02:25:32.445Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-11-08T02:25:32.445Z","attemptedAt":"2026-11-08T02:25:32.445Z"},{"source":"EUVD","status":"no-result","checkedAt":"2026-11-08T02:25:33.628Z","attemptedAt":"2026-11-08T02:25:33.628Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-08T02:25:33.630Z","attemptedAt":"2026-11-08T02:25:33.630Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-123589","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123589","modified":"2026-11-08T02:16:52.950","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","checkedAt":"2026-11-08T02:25:32.445Z"},{"source":"NVD","id":"CVE-2026-123589","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123589","modified":"2026-11-08T02:16:52.950","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","checkedAt":"2026-11-08T02:25:32.445Z"}],"aiSummary":{"text":"Hickory DNS before 0.26.2 is vulnerable to a denial of service via missing DNS-over-QUIC request read timeout, allowing a remote unauthenticated client to consume server resources. The weakness is due to uncontrolled resource consumption. Affected versions are less than 0.26.2.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-12T12:21:15.696Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-123589"}]}}