{"id":"UBUNTU-CVE-2026-42254","details":"Hickory DNS hickory-recursor 0.1 through 0.25.2 allows cross-zone poisoning because cached data is not directly associated with a query that triggered a response.","modified":"2026-05-20T16:25:43.549776033Z","published":"2026-04-26T03:15:00Z","upstream":["CVE-2026-42254"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-42254"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-42254"},{"type":"REPORT","url":"https://rustsec.org/advisories/RUSTSEC-2026-0106.html"},{"type":"REPORT","url":"https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-83hf-93m4-rgwq"}],"affected":[{"package":{"name":"rust-hickory-recursor","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/rust-hickory-recursor?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.24.1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.24.1-1","binary_name":"librust-hickory-recursor-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42254.json"}},{"package":{"name":"rust-hickory-recursor","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/rust-hickory-recursor?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.24.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"librust-hickory-recursor-dev","binary_version":"0.24.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-42254.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}