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CVE-2026-86076

🗓️ 08 Sep 2026 21:28:52Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 84 Views🌐 WEB

n8n expression sandbox escape via __sanitize field enables cross-user JavaScript execution.

Related
Detection
Affected
Refs
Paths
NVD
Vulners
Node
OR
n8nn8nRange<1.123.76node.js
n8nn8nRange2.0.0–2.37.7node.js
n8nn8nRange2.38.0–2.38.2node.js
[
  {
    "vendor": "n8n-io",
    "product": "n8n",
    "versions": [
      {
        "version": ">= 2.38.0, < 2.38.2",
        "status": "affected"
      },
      {
        "version": ">= 2.0.0, < 2.37.7",
        "status": "affected"
      },
      {
        "version": "< 1.123.76",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
emailrequest body/rest/owner/setupEndpoint used to create an owner account, which can be used to gain initial access for the expression sandbox escape.CWE-94
passwordrequest body/rest/owner/setupEndpoint used to create an owner account, which can be used to gain initial access for the expression sandbox escape.CWE-94
emailrequest body/rest/loginAuthentication endpoint used to log in as the created owner account.CWE-94
passwordrequest body/rest/loginAuthentication endpoint used to log in as the created owner account.CWE-94
includeDataquery param/rest/executions/?includeData=trueEndpoint used to retrieve execution data, which can be used to read back the output of the executed command.CWE-94

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11 Sep 2026 18:20Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.18.8
CVSS 48.7
EPSS0.00652
SSVC
84