{"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":"0.24.0","versionType":"semver"},{"status":"unaffected","version":"0.26.2","versionType":"semver"}]}],"cveId":"CVE-2026-123577","cwes":["CWE-770"],"description":"Hickory DNS from 0.24.0 before 0.26.2 contains a resource exhaustion vulnerability that allows remote attackers to consume server memory via unbounded DoH request bodies. Attackers can send large request bodies over HTTP/2 or HTTP/3 to a DNS over HTTP server, causing memory exhaustion and denial of service.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.7,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":7.5,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1794101892696,"publishedAt":1794101892696,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-5r56-v84h-c3w5"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/hickory-dns-0.24.0-before-0.26.2-doh-unbounded-request-body-denial-of-service"}],"remediation":[],"revision":"05768ab9183d8fc532eec7f36c154a9d8feeb72c526b4cd913f8e32e100e4774","sources":[{"modifiedAt":1794101892696,"name":"CNA: VulnCheck","retrievedAt":1794103810453,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123577"}],"ssvc":null,"status":"published","title":"Hickory DNS 0.24.0 before 0.26.2 DoH Unbounded Request Body Denial of Service","updatedAt":1794103810453}