{"id":"CVE-2026-123577","aliases":[],"cve":{"records":[{"id":"CVE-2026-123577","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-11-06T00:55:55.660Z","published":"2026-11-08T01:38:12.696Z","modified":"2026-11-10T17:57:57.905Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-11-08T01:38:12.696Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-10T17:57:57.905Z"}],"references":[{"url":"https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-5r56-v84h-c3w5","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/hickory-dns-0.24.0-before-0.26.2-doh-unbounded-request-body-denial-of-service","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-770","description":"Allocation of Resources Without Limits or Throttling","source":"VulnCheck"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-10T16:29:26.566916Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Hickory DNS 0.24.0 before 0.26.2 DoH Unbounded Request Body Denial of Service","titleSource":"VulnCheck","descriptionSource":"VulnCheck","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service.","score":8.7,"severity":"high","published":"2026-11-08T01:38:12.696Z","modified":"2026-11-10T17:57:57.905Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"hickory-dns","name":"hickory-dns","platforms":[],"versions":[{"version":"0.24.0","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-2026-123577"}],"remediation":[],"references":["https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-5r56-v84h-c3w5","https://www.vulncheck.com/advisories/hickory-dns-0.24.0-before-0.26.2-doh-unbounded-request-body-denial-of-service"],"sources":[{"name":"CVE","id":"CVE-2026-123577","modified":"2026-11-10T17:57:57.905Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-123577"}],"assessments":[{"source":"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","score":8.7},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5}],"sourceAffected":[],"observedAt":"2026-11-10T18:16:34.828Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T02:10:31.937Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-08T02:40:30.773Z","attemptedAt":"2026-11-08T02:40:30.773Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-11-08T02:40:30.773Z","attemptedAt":"2026-11-08T02:40:30.773Z"},{"source":"EUVD","status":"no-result","checkedAt":"2026-11-08T02:40:31.502Z","attemptedAt":"2026-11-08T02:40:31.502Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-08T02:40:31.502Z","attemptedAt":"2026-11-08T02:40:31.502Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-123577","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123577","modified":"2026-11-08T02:16:51.050","score":8.7,"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/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":"2026-11-08T02:40:30.773Z"},{"source":"NVD","id":"CVE-2026-123577","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123577","modified":"2026-11-08T02:16:51.050","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","checkedAt":"2026-11-08T02:40:30.773Z"}],"aiSummary":{"text":"Hickory DNS versions 0.24.0 before 0.26.2 have a resource exhaustion vulnerability, allowing remote attackers to consume server memory via unbounded DoH request bodies, causing denial of service. Attackers can send large request bodies over HTTP/2 or HTTP/3. The weakness is allocation of resources without limits or throttling.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-08T02:11:47.350Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-123577"}]}}