{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": [
              "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*",
              "cpe:2.3:a:n8n:n8n:2.10.0:*:*:*:community:node.js:*:*",
              "cpe:2.3:a:n8n:n8n:2.10.0:*:*:*:enterprise:node.js:*:*"
            ],
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.123.22"
              },
              {
                "introduced": "2.0.0"
              },
              {
                "fixed": "2.9.3"
              },
              {
                "introduced": "2.10.0"
              },
              {
                "last_affected": "2.10.0"
              }
            ],
            "source": [
              "CPE_RANGE",
              "CPE_STRING"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "49d7e160287556e65d7daf754bd155095b7738d5"
            },
            {
              "introduced": "a8ecda44f7627630bc8b78cf671405157ad41c4f"
            },
            {
              "fixed": "e9e2456708c8025151e5a9f3096f589a87be241f"
            },
            {
              "introduced": "8e81f3e31398b04fd6f8cc27cf844980cd382117"
            },
            {
              "last_affected": "8e81f3e31398b04fd6f8cc27cf844980cd382117"
            }
          ],
          "repo": "https://github.com/n8n-io/n8n",
          "type": "GIT"
        }
      ],
      "versions": [
        "2.10.0"
      ]
    }
  ],
  "aliases": [
    "GHSA-jh8h-6c9q-7gmw"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-287"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56353.json"
  },
  "details": "n8n contains an authentication bypass in the Chat Trigger node when configured with n8n User Auth (a non-default configuration). In affected releases — before 1.123.22, the 2.0.0 through 2.9.2 line, and 2.10.0 — the authentication check on the Chat Trigger webhook endpoint can be circumvented, allowing access without valid credentials. Fixed in 1.123.22, 2.9.3, and 2.10.1.",
  "id": "CVE-2026-56353",
  "modified": "2026-07-18T03:42:06.334550858Z",
  "published": "2026-07-15T11:25:29.334Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56353.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-jh8h-6c9q-7gmw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56353"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/n8n-authentication-bypass-in-chat-trigger-node"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "n8n - Authentication Bypass in Chat Trigger Node"
}