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9.1

n8n can be tricked into running unwanted code

published 9 days ago
Summary

The n8n workflow automation tool uses the vm2 library version 3 or later, which contains a weakness that could let an attacker cause the system to run code it shouldn't. This could lead to data exposure or system misuse. Upgrade n8n (or the vm2 component) to a version where the issue is fixed, and apply any recommended security updates promptly.

What to do
  • Update cleanstart n8n to version 2.28.0-r5.
Affected software
Ecosystem VendorProductAffected versions
CleanStart cleanstart n8n < 2.28.0-r5
Fix: upgrade to 2.28.0-r5
Original advisory text
vm2 versions from 3
Security vulnerability affects the n8n package. vm2 versions from 3.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
9.1 Critical
Timeline
Published10 Oct 2026
Updated10 Oct 2026
First seen10 Oct 2026
Sources
CLEANSTART-2026-NR22907 · OSV
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