{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2026-42254", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "state": "PUBLISHED", "assignerShortName": "mitre", "dateReserved": "2026-04-26T02:38:40.734Z", "datePublished": "2026-04-26T02:38:41.261Z", "dateUpdated": "2026-04-26T03:10:54.172Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "packageURL": "pkg:cargo/hickory-recursor", "product": "Hickory DNS", "vendor": "Hickory Project", "versions": [{"lessThan": "0.26", "status": "affected", "version": "0.1", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "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."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-706", "description": "CWE-706 Use of Incorrectly-Resolved Name or Reference", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-04-26T03:10:54.172Z"}, "references": [{"url": "https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-83hf-93m4-rgwq"}], "x_generator": {"engine": "CVE-Request-form 0.0.1"}}}, "dataVersion": "5.2"}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-42254", "lastModified": "2026-04-26T03:15:59.080", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 1.4, "source": "cve@mitre.org", "type": "Secondary"}]}, "published": "2026-04-26T03:15:59.080", "references": [{"source": "cve@mitre.org", "url": "https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-83hf-93m4-rgwq"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-706"}], "source": "cve@mitre.org", "type": "Primary"}]}

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