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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor."}], "id": "CVE-2026-0398", "lastModified": "2026-02-09T16:16:00.100", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "security@open-xchange.com", "type": "Secondary"}]}, "published": "2026-02-09T15:16:11.360", "references": [{"source": "security@open-xchange.com", "url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html"}], "sourceIdentifier": "security@open-xchange.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

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