{"cve":"CVE-2026-42254","nvd":{"published":"2026-04-26T03:15:59.080","modified":"2026-10-26T22:10:00.163","status":"Awaiting Analysis","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N","score":4.0},"cwes":["CWE-706"],"references":["https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-83hf-93m4-rgwq"],"products":[],"source":"nvd","synced_at":"2026-10-26T22:26:44.656832877+00:00"},"epss":{"cve":"CVE-2026-42254","score":0.00162,"percentile":0.054,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-83hf-93m4-rgwq","url":"https://osv.dev/vulnerability/GHSA-83hf-93m4-rgwq","summary":"Hickory DNS's Record Cache Accepts AUTHORITY-Section NS from Sibling Zone via Parent-Pool Zone-Context Elevation","modified":"2026-07-08T08:12:56.458992426Z","packages":[{"ecosystem":"crates.io","name":"hickory-recursor","purl":"pkg:cargo/hickory-recursor","ranges":[">=0.24.0 <0.26.0"],"fixed":["0.26.0"]},{"ecosystem":"crates.io","name":"hickory-recursor","purl":"pkg:cargo/hickory-recursor","ranges":["0.1"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}