{
  "cvss": 5.9,
  "datePublished": "2026-08-04T01:16:20.123",
  "dateUpdated": "2026-10-23T23:10:00.157",
  "description": "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**.",
  "id": "CVE-2026-58042",
  "raw": {
    "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 más de 256 registros A.\n\nEl desencadenamiento repetido de esta condición puede llevar a una denegación 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"
      }
    ]
  },
  "severity": "MEDIUM",
  "source": "nvd",
  "title": "A flaw in Node.js can cause dns.resolveAny() Aborts the Node.js Process When a DNS Response Contains More Than 256 A ..."
}