Arbitrary Argument Injection Affecting n8n-nodes-base package, versions <1.121.29>=2.0.0-rc.0 <2.20.4>=2.21.0 <2.21.1
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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Test your applications- Snyk IDSNYK-JS-N8NNODESBASE-16726423
- published17 May 2026
- disclosed14 May 2026
- creditSimon Köck
Introduced: 14 May 2026
NewCVE-2026-44790 (opens in a new tab)How to fix?
Upgrade n8n-nodes-base to version 1.121.29, 2.20.4, 2.21.1 or higher.
Overview
n8n-nodes-base is a Base nodes of n8n
Affected versions of this package are vulnerable to Arbitrary Argument Injection in a push operation. A user with permission to create or modify workflows can read arbitrary files on the server by injecting CLI flags during workflow creation or modification.
Workaround
This vulnerability can be mitigated but not obviated by disabling the Git node by adding n8n-nodes-base.git to the NODES_EXCLUDE environment variable.