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CVE-2026-34601

Estado: AplazadaAlta (7.5)—

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. In xmldom versions 0.6.0 and prior and @xmldom/xmldom prior to versions 0.8.12 and 0.9.9, xmldom/xmldom allows attacker-controlled strings containing the CDATA terminator ]]> to be inserted into a CDATASection node. During serialization, XMLSerializer emitted the CDATA content verbatim without rejecting or safely splitting the terminator. As a result, data intended to remain text-only became active XML markup in the serialized output, enabling XML structure injection and downstream business-logic manipulation. This issue has been patched in xmldom version 0.6.0 and @xmldom/xmldom versions 0.8.12 and 0.9.9.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Inyección XML en serialización de xmldom (CWE-91) expuesto en red pública sin autenticación (AV:N/PR:N) permite manipular datos en la salida serializada, violando integridad (I:H).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningRestrict File and Directory PermissionsPrivileged Account ManagementRemote Data StorageNetwork SegmentationLimit Access to Resource Over Network

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Xmldom — XmldomAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-34601",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-34601",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-03T16:02:29.353065Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Secondary",
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "cvssData": {
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          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
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      "source": "security-advisories@github.com",
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          "product": "xmldom",
          "versions": [
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              "version": "xmldom <= 0.6.0"
            },
            {
              "status": "affected",
              "version": "@xmldom/xmldom < 0.8.12"
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            }
          ]
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    {
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      "affectedData": [
        {
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            "cpe:/a:redhat:migration_toolkit_applications:8"
          ],
          "vendor": "Red Hat",
          "product": "Migration Toolkit for Applications 8",
          "packageName": "redhat-user-workloads/art-images",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:podman_desktop:1"
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          "vendor": "Red Hat",
          "product": "Red Hat Build of Podman Desktop",
          "packageName": "podman-desktop-macos-1-0",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
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          "vendor": "Red Hat",
          "product": "Red Hat Build of Podman Desktop",
          "packageName": "podman-desktop-windows-1-0",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:rhdh:1"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Developer Hub",
          "packageName": "rhdh/rhdh-hub-rhel9",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:jboss_fuse:7"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat Fuse 7",
          "packageName": "xmldom",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "packageName": "rhoai/odh-mlflow-rhel9",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift:4"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat OpenShift Container Platform 4",
          "packageName": "redhat-user-workloads/art-images",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:openshift_devspaces:3"
          ],
          "vendor": "Red Hat",
          "product": "Red Hat OpenShift Dev Spaces",
          "packageName": "redhat-user-workloads/code-rhel9",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        },
        {
          "cpes": [
            "cpe:/a:redhat:ansible_portal:2"
          ],
          "vendor": "Red Hat",
          "product": "Self-service automation portal 2",
          "packageName": "redhat-user-workloads/ansible-plugins",
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-04-02T18:16:31.933",
  "references": [
    {
      "url": "https://github.com/xmldom/xmldom/commit/2b852e836ab86dbbd6cbaf0537f584dd0b5ac184",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/xmldom/xmldom/releases/tag/0.8.12",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/xmldom/xmldom/releases/tag/0.9.9",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/xmldom/xmldom/security/advisories/GHSA-wh4c-j3r5-mjhp",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-34601",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2454595",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    },
    {
      "url": "https://github.com/xmldom/xmldom/security/advisories/GHSA-wh4c-j3r5-mjhp",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    },
    {
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34601.json",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-91"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "description": [
        {
          "lang": "en",
          "value": "CWE-91"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. In xmldom versions 0.6.0 and prior and @xmldom/xmldom prior to versions 0.8.12 and 0.9.9, xmldom/xmldom allows attacker-controlled strings containing the CDATA terminator ]]> to be inserted into a CDATASection node. During serialization, XMLSerializer emitted the CDATA content verbatim without rejecting or safely splitting the terminator. As a result, data intended to remain text-only became active XML markup in the serialized output, enabling XML structure injection and downstream business-logic manipulation. This issue has been patched in xmldom version 0.6.0 and @xmldom/xmldom versions 0.8.12 and 0.9.9."
    },
    {
      "lang": "es",
      "value": "xmldom es un módulo de JavaScript puro basado en el estándar W3C (XML DOM Nivel 2 Core) para 'DOMParser' y 'XMLSerializer'. En las versiones 0.6.0 y anteriores de xmldom y en @xmldom/xmldom anteriores a las versiones 0.8.12 y 0.9.9, xmldom/xmldom permite que cadenas controladas por el atacante que contienen el terminador CDATA ]]> sean insertadas en un nodo CDATASection. Durante la serialización, 'XMLSerializer' emitía el contenido CDATA textualmente sin rechazar o dividir de forma segura el terminador. Como resultado, los datos destinados a permanecer solo como texto se convirtieron en marcado XML activo en la salida serializada, lo que permitía la inyección de estructura XML y la manipulación de la lógica de negocio posterior. Este problema ha sido parcheado en la versión 0.6.0 de xmldom y en las versiones 0.8.12 y 0.9.9 de @xmldom/xmldom."
    }
  ],
  "lastModified": "2026-07-21T19:10:00.107",
  "sourceIdentifier": "security-advisories@github.com"
}