{"id":"CVE-2026-123574","aliases":["GHSA-4rph-pmrw-mwpw"],"url":"https://o3.security/vulnerability/CVE-2026-123574","summary":"Hickory DNS 0.24.0 before 0.26.2 Denial of Service via Zone File Parser","details":"The zone file parser in the hickory-proto crate of Hickory DNS 0.24.0 before 0.26.2 panics when a single token in a zone file is 4096 bytes or longer. Attackers who can supply untrusted zone files to an application using the parser can trigger the panic to cause a denial of service.","published":"2026-11-08T01:38:10.613Z","modified":"2026-11-08T10:45:41.854845974Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/123xxx/CVE-2026-123574.json"},{"type":"ADVISORY","url":"https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-4rph-pmrw-mwpw"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123574"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/hickory-dns-0.24.0-before-0.26.2-denial-of-service-via-zone-file-parser"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-11-08T10:45:41.854845974Z"}}