n8n has a Webhook Node IP Whitelist Bypass via Partial String Matching

{
  "id": "a018d95d689f8459d0cb8d405e9ae03906f8719d9c0b175e0446fcaf41db3545",
  "url": "https://osv.dev/vulnerability/CVE-2025-68949",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "n8n has a Webhook Node IP Whitelist Bypass via Partial String Matching",
    "summary": "n8n is an open source workflow automation platform. From 1.36.0 to before 2.2.0, the Webhook node’s 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.",
    "evidence": "osv:CVE-2025-68949",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-68949",
      "aliases": [
        "CVE-2025-68949",
        "GHSA-w96v-gf22-crwp"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/n8n-io/n8n",
              "type": "GIT",
              "events": [
                {
                  "introduced": "15fb6cbd4a75d38cadb3962f9c0194d81fc3fd35"
                },
                {
                  "fixed": "67e25c890a7817b36190f7b679fb102864fe02c2"
                },
                {
                  "fixed": "11f8597d4ad69ea3b58941573997fdbc4de1fec5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "1.36.0"
                      },
                      {
                        "fixed": "2.2.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "11f8597d4ad69ea3b58941573997fdbc4de1fec5"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "n8n@1.115.0",
            "n8n@1.113.0",
            "n8n@1.107.0",
            "n8n@1.105.0",
            "n8n@1.103.0",
            "n8n@1.94.0",
            "n8n@1.93.0",
            "n8n@1.92.0",
            "n8n@1.89.0",
            "n8n@1.74.0",
            "n8n@1.73.0",
            "n8n@1.71.0",
            "n8n@1.69.0",
            "n8n@1.64.0",
            "n8n@1.63.0",
            "n8n@1.62.1",
            "n8n@1.60.0",
            "n8n@1.59.0",
            "n8n@1.58.0",
            "n8n@1.56.0",
            "n8n@1.55.0",
            "n8n@1.51.0",
            "n8n@1.50.0",
            "n8n@1.49.0",
            "n8n@1.47.0",
            "n8n@1.42.0",
            "n8n@1.40.0",
            "n8n@1.37.0",
            "n8n@1.36.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68949.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.448037053Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68949.json",
        "https://github.com/n8n-io/n8n/security/advisories/GHSA-w96v-gf22-crwp",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-68949",
        "https://github.com/n8n-io/n8n/issues/23399",
        "https://github.com/n8n-io/n8n/commit/11f8597d4ad69ea3b58941573997fdbc4de1fec5",
        "https://github.com/n8n-io/n8n/pull/23399"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-134",
          "CWE-284"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68949.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-68949",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518757,
  "published_at": "2026-01-13T18:43:20.189+00:00"
}