n8n: XML Node Prototype Pollution to RCE_CVE-2026-42232

{
    "lastseen": "",
    "description": "n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, an authenticated user with permission to create or modify workflows could achieve global prototype pollution via the XML Node leading to RCE when combined with other nodes exploiting the prototype pollution. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.",
    "published": "2026-05-04T18:34:11.062Z",
    "modified": "2026-05-04T18:34:11.062Z",
    "type": "cve",
    "title": "n8n: XML Node Prototype Pollution to RCE",
    "source": "GitHub_M",
    "references": "https://github.com/n8n-io/n8n/security/advisories/GHSA-hqr4-h3xv-9m3r",
    "id": "CVE-2026-42232",
    "bulletinFamily": "",
    "cwe": [
        "CWE-1321"
    ],
    "cvelist": null,
    "sourceData": "n8n-io n8n < 1.123.32\nn8n-io n8n >= 2.17.0, < 2.17.4\nn8n-io n8n >= 2.18.0, < 2.18.1",
    "sourceHref": "",
    "cvss": {
        "score": 9.4,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "n8n",
    "version": "< 1.123.32",
    "vendor": "n8n-io",
    "ai_description": "XML Node Prototype Pollution to Remote Code Execution (RCE)",
    "ai_severity": "Critical",
    "ai_vendor": "n8n-io",
    "ai_product": "n8n",
    "ai_version": "< 1.123.32, >= 2.17.0 and < 2.17.4, >= 2.18.0 and < 2.18.1",
    "ai_score": 9.4
}