CVE-2026-58042

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "node", "vendor": "nodejs", "versions": [{"lessThanOrEqual": "26.5.0", "status": "affected", "version": "26.5.0", "versionType": "semver"}, {"lessThanOrEqual": "24.18.0", "status": "affected", "version": "24.18.0", "versionType": "semver"}, {"lessThanOrEqual": "22.23.1", "status": "affected", "version": "22.23.1", "versionType": "semver"}]}], "source": "support@hackerone.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw in Node.js can cause dns.resolveAny() Aborts the Node.js Process When a DNS Response Contains More Than 256 A Records.\r\n\r\nRepeated triggering of this condition can lead to denial of service.\r\n\r\nThis vulnerability affects Node.js **26.x**, **24.x**, and **22.x**."}, {"lang": "es", "value": "Un fallo en Node.js puede causar que dns.resolveAny() aborte el proceso de Node.js cuando una respuesta DNS contiene m\u00e1s de 256 registros A.\n\nEl desencadenamiento repetido de esta condici\u00f3n puede llevar a una denegaci\u00f3n de servicio.\n\nEsta vulnerabilidad afecta a Node.js 26.x, 24.x, y 22.x."}], "id": "CVE-2026-58042", "lastModified": "2026-10-23T23:10:00.157", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "support@hackerone.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-58042", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-04T14:19:36.224340Z", "version": "2.0.3"}}]}, "published": "2026-08-04T01:16:20.123", "references": [{"source": "support@hackerone.com", "url": "https://nodejs.org/en/blog/vulnerability/july-2026-security-releases"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "support@hackerone.com", "type": "Secondary"}]}

{"bugzilla": {"description": "nodejs: Node.js: Denial of Service via DNS responses with excessive A records", "id": "2510854", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510854"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-770", "details": ["A flaw in Node.js can cause dns.resolveAny() Aborts the Node.js Process When a DNS Response Contains More Than 256 A Records.\nRepeated triggering of this condition can lead to denial of service.\nThis vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.", "A flaw was found in Node.js. A remote attacker could exploit this vulnerability by sending a specially crafted DNS response containing an excessive number of A records. This would cause the dns.resolveAny() function to abort the Node.js process, leading to a denial of service (DoS). Repeated exploitation of this flaw can result in a persistent denial of service for affected systems."], "name": "CVE-2026-58042", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Under investigation", "package_name": "nodejs22", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Under investigation", "package_name": "nodejs24", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Under investigation", "package_name": "nodejs:22/nodejs", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Under investigation", "package_name": "nodejs:24/nodejs", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Under investigation", "package_name": "nodejs:22/nodejs", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Under investigation", "package_name": "nodejs:24/nodejs", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Will not fix", "package_name": "nodejs20", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "nodejs22", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "nodejs24", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Will not fix", "package_name": "nodejs25", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "nodejs26", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-08-04T00:49:58Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-58042\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-58042\nhttps://nodejs.org/en/blog/vulnerability/july-2026-security-releases"], "threat_severity": "Moderate"}

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