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9.4

n8n may run unsafe code

published 9 days ago
Summary

The n8n automation tool from cleanstart can be tricked into executing code it shouldn’t. This could let an attacker run commands on your server, potentially compromising data or services. Update to the latest version of n8n and review any custom scripts or third‑party integrations for safety.

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 3
Security vulnerability affects the n8n package. vm2 3.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker full control (estimated)
Severity
9.4 Critical
Timeline
Published10 Oct 2026
Updated10 Oct 2026
First seen10 Oct 2026
Sources
CLEANSTART-2026-AL98227 · OSV
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