New Vulnerability in n8n_SCHNEIER:21BEBBEB90825298BAA2BA42ADD662DF

{
    "lastseen": "2026-01-15T14:05:07",
    "description": "This isn't good:\n\n> We discovered a critical vulnerability (CVE-2026-21858, CVSS 10.0) in n8n that enables attackers to take over locally deployed instances, impacting an estimated 100,000 servers globally. No official workarounds are available for this vulnerability. Users should upgrade to version 1.121.0 or later to remediate the vulnerability.\n\nThree technical links and two news links.",
    "published": "2026-01-15T12:05:04",
    "modified": "2026-01-14T19:57:21",
    "type": "schneier",
    "title": "New Vulnerability in n8n",
    "source": "",
    "references": "",
    "id": "SCHNEIER:21BEBBEB90825298BAA2BA42ADD662DF",
    "bulletinFamily": "blog",
    "cwe": null,
    "cvelist": [
        "CVE-2026-21858"
    ],
    "sourceData": "",
    "sourceHref": "",
    "cvss": {
        "score": 10,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N",
        "version": "3.1"
    },
    "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": "https://www.schneier.com/blog/archives/2026/01/new-vulnerability-in-n8n.html",
    "category_name": "News",
    "post_link": "",
    "product": "",
    "version": "",
    "vendor": "",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}