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CVE-2024-34394

Status: DeferredHigh (8.1)—

libxmljs2 is vulnerable to a type confusion vulnerability when parsing a specially crafted XML while invoking the namespaces() function (which invokes XmlNode::get_local_namespaces()) on a grand-child of a node that refers to an entity. This vulnerability can lead to denial of service and remote code execution.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Libxmljs2 — Libxmljs2AI

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2024-34394",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-34394",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-05-02T19:57:23.256207Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "reefs@jfrog.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "reefs@jfrog.com",
      "affectedData": [
        {
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "semver",
              "lessThanOrEqual": "0.37.0"
            }
          ],
          "packageName": "libxmljs2",
          "collectionURL": "https://www.npmjs.com",
          "defaultStatus": "unaffected"
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:marudor:libxmljs2:*:*:*:*:*:*:*:*"
          ],
          "vendor": "marudor",
          "product": "libxmljs2",
          "versions": [
            {
              "status": "affected",
              "version": "*"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2024-05-02T19:15:06.630",
  "references": [
    {
      "url": "https://github.com/marudor/libxmljs2/issues/205",
      "source": "reefs@jfrog.com"
    },
    {
      "url": "https://research.jfrog.com/vulnerabilities/libxmljs2-namespaces-type-confusion-rce-jfsa-2024-001034098/",
      "source": "reefs@jfrog.com"
    },
    {
      "url": "https://github.com/marudor/libxmljs2/issues/205",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://research.jfrog.com/vulnerabilities/libxmljs2-namespaces-type-confusion-rce-jfsa-2024-001034098/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "reefs@jfrog.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-843"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "libxmljs2 is vulnerable to a type confusion vulnerability when parsing a specially crafted XML while invoking the namespaces() function (which invokes XmlNode::get_local_namespaces()) on a grand-child of a node that refers to an entity. This vulnerability can lead to denial of service and remote code execution."
    },
    {
      "lang": "es",
      "value": "libxmljs2 es afectada por una vulnerabilidad de confusión de tipos cuando analiza un XML especialmente manipulado mientras se invoca la función namespaces() (que invoca XmlNode::get_local_namespaces()) en un nieto de un nodo que hace referencia a una entidad. Esta vulnerabilidad puede provocar denegación de servicio y ejecución remota de código."
    }
  ],
  "lastModified": "2026-10-03T10:16:38.343",
  "sourceIdentifier": "reefs@jfrog.com"
}