{"affected":[{"defaultStatus":"unaffected","ecosystem":"cargo","packageName":"hickory-server","product":"hickory-dns","source":"CNA: VulnCheck","vendor":"hickory-dns","versions":[{"lessThan":"0.26.2","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"0.26.2","versionType":"semver"}]}],"cveId":"CVE-2026-123589","cwes":[],"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":6.9,"severity":"medium","source":"CNA: 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","version":"4.0"},{"score":5.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"}],"modifiedAt":1794101900968,"publishedAt":1794101900968,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-g8wg-4mwh-fjfv"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/hickory-dns-before-0.26.2-denial-of-service-via-missing-dns-over-quic-request-read-timeout"}],"remediation":[],"revision":"6c3f03faf18f21908db3995a074e6b8bb6070437f1e9d08b2495d91e5bb8e0b4","sources":[{"modifiedAt":1794101900968,"name":"CNA: VulnCheck","retrievedAt":1794103825382,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123589"}],"ssvc":null,"status":"published","title":"Hickory DNS before 0.26.2 Denial of Service via Missing DNS-over-QUIC Request Read Timeout","updatedAt":1794103825382}