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9.4

n8n can run unsafe code due to vm2 issue

published 9 days ago
Summary

The n8n workflow automation tool includes the vm2 library version 3 or later, which can be tricked into executing code that it should block. This means an attacker could run arbitrary commands on the server hosting n8n. Update n8n to a version that uses a patched vm2 release or apply the vendor's recommended mitigation as soon as possible.

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 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (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-BS07911 · OSV
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