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CVE-2022-39353

Status: ModifiedCritical (9.8)—

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. xmldom parses XML that is not well-formed because it contains multiple top level elements, and adds all root nodes to the `childNodes` collection of the `Document`, without reporting any error or throwing. This breaks the assumption that there is only a single root node in the tree, which led to issuance of CVE-2022-39299 as it is a potential issue for dependents. Update to @xmldom/xmldom@~0.7.7, @xmldom/xmldom@~0.8.4 (dist-tag latest) or @xmldom/xmldom@>=0.9.0-beta.4 (dist-tag next).

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As a workaround, please one of the following approaches depending on your use case: instead of searching for elements in the whole DOM, only search in the `documentElement`or reject a document with a document that has more then 1 `childNode`.

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 (2)

Debian — Debian LinuxXmldom Project — Xmldom

CWEs

References

Raw JSON (NVD)

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{
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          "version": "2.0.3",
          "timestamp": "2025-04-22T15:39:20.618073Z"
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  "vulnStatus": "Modified",
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      "description": [
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      "lang": "en",
      "value": "xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. xmldom parses XML that is not well-formed because it contains multiple top level elements, and adds all root nodes to the `childNodes` collection of the `Document`, without reporting any error or throwing. This breaks the assumption that there is only a single root node in the tree, which led to issuance of CVE-2022-39299 as it is a potential issue for dependents. Update to @xmldom/xmldom@~0.7.7, @xmldom/xmldom@~0.8.4 (dist-tag latest) or @xmldom/xmldom@>=0.9.0-beta.4 (dist-tag next). As a workaround, please one of the following approaches depending on your use case: instead of searching for elements in the whole DOM, only search in the `documentElement`or reject a document with a document that has more then 1 `childNode`."
    },
    {
      "lang": "es",
      "value": "xmldom es un módulo `DOMParser` y `XMLSerializer` basado en el estándar W3C de JavaScript puro (XML DOM Level 2 Core). xmldom analiza XML que no está bien formado porque contiene múltiples elementos de nivel superior y agrega todos los nodos raíz a la colección `childNodes` del `Documento`, sin informar ningún error ni arrojar. Esto rompe la suposición de que solo hay un nodo raíz en el árbol, lo que llevó a la emisión de CVE-2022-39299, ya que es un problema potencial para los dependientes. Actualice a @xmldom/xmldom@~0.7.7, @xmldom/xmldom@~0.8.4 (dist-tag más reciente) o @xmldom/xmldom@&gt;=0.9.0-beta.4 (dist-tag siguiente). Como workaround, utilice uno de los siguientes enfoques según su caso de uso: en lugar de buscar elementos en todo el DOM, solo busque en `documentElement` o rechace un documento con un documento que tenga más de 1 `childNode`."
    }
  ],
  "lastModified": "2026-06-17T04:58:12.050",
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