Arbitrary Code Injection Affecting n8n-nodes-base package, versions <1.121.15>=2.0.0 <2.9.1>=2.10.0 <2.10.1
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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- published26 Feb 2026
- disclosed25 Feb 2026
- creditSean Nejad, Nil Ash
Introduced: 25 Feb 2026
CVE-2026-27497 (opens in a new tab)How to fix?
Upgrade n8n-nodes-base to version 1.121.15, 2.9.1, 2.10.1 or higher.
Overview
n8n-nodes-base is a Base nodes of n8n
Affected versions of this package are vulnerable to Arbitrary Code Injection via the Merge node's SQL query mode. An attacker can execute arbitrary code and write arbitrary files on the server by crafting malicious workflows after authenticating with permissions to create or modify workflows.
Workaround
This vulnerability can be mitigated by limiting workflow creation and editing permissions to fully trusted users only, or by disabling the Merge node by adding n8n-nodes-base.merge to the NODES_EXCLUDE environment variable.