Exposure of Sensitive System Information to an Unauthorized Control Sphere Affecting n8n-nodes-base package, versions <2.7.0
Threat Intelligence
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-N8NNODESBASE-15357599
- published26 Feb 2026
- disclosed25 Feb 2026
- creditMarcoPoloPie, Nico-Posada
Introduced: 25 Feb 2026
CVE-2026-27494 (opens in a new tab)How to fix?
Upgrade n8n-nodes-base to version 2.7.0 or higher.
Overview
n8n-nodes-base is a Base nodes of n8n
Affected versions of this package are vulnerable to Exposure of Sensitive System Information to an Unauthorized Control Sphere due to insufficient restrictions in the Python Code node sandbox. An attacker can access sensitive files or execute arbitrary code by escaping the sandbox environment.
Workaround
This vulnerability can be mitigated by limiting workflow creation and editing permissions to fully trusted users only, or by disabling the Code node by adding n8n-nodes-base.code to the NODES_EXCLUDE environment variable.