n8n has a Webhook Node IP Whitelist Bypass via Partial String Matching_CVE-2025-68949

{
    "lastseen": "",
    "description": "n8n is an open source workflow automation platform. From 1.36.0 to before 2.2.0, the Webhook node\u2019s IP whitelist validation performed partial string matching instead of exact IP comparison. As a result, an incoming request could be accepted if the source IP address merely contained the configured whitelist entry as a substring. This issue affected instances where workflow editors relied on IP-based access controls to restrict webhook access. Both IPv4 and IPv6 addresses were impacted. An attacker with a non-whitelisted IP could bypass restrictions if their IP shared a partial prefix with a trusted address, undermining the intended security boundary. This vulnerability is fixed in 2.2.0.",
    "published": "2026-01-13T18:43:20.189Z",
    "modified": "2026-01-13T19:00:47.909Z",
    "type": "cve",
    "title": "n8n has a Webhook Node IP Whitelist Bypass via Partial String Matching",
    "source": "GitHub_M",
    "references": "https://github.com/n8n-io/n8n/security/advisories/GHSA-w96v-gf22-crwp\nhttps://github.com/n8n-io/n8n/issues/23399\nhttps://github.com/n8n-io/n8n/pull/23399\nhttps://github.com/n8n-io/n8n/commit/11f8597d4ad69ea3b58941573997fdbc4de1fec5",
    "id": "CVE-2025-68949",
    "bulletinFamily": "",
    "cwe": [
        "CWE-134",
        "CWE-284"
    ],
    "cvelist": null,
    "sourceData": "n8n-io n8n >= 1.36.0, < 2.2.0",
    "sourceHref": "",
    "cvss": {
        "score": 5.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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": "",
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            "privilegesRequired": "",
            "userInteraction": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "n8n",
    "version": ">= 1.36.0, < 2.2.0",
    "vendor": "n8n-io",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
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    "ai_score": 0
}