n8n: Expression sandbox escape via arrow-function bodies enabling command execution
- Product
- n8n
- Affected
- n8n < 2.31.5 and n8n >= 2.32.0, < 2.32.1
- Fixed in
- 2.31.5
Last verified against sources: October 26, 2026
Am I affected?
n8n: affected n8n < 2.31.5 and n8n >= 2.32.0, < 2.32.1. Fixed in 2.31.5.
- Check your version: run
npm ls n8n. Versions >= 2.32.0, < 2.32.1 of n8n are affected. [1]
What to do now
- Upgrade to the fixed version: run
npm install n8n@2.32.1(first patched version 2.32.1). [1] - Upgrade to n8n 2.31.5 or 2.32.1 or later. [1]
- Restrict n8n instance access to fully trusted users only. [1]
- Restrict workflow creation and editing permissions to fully trusted users only. [1]
General practice, not from the source: if the affected software could read tokens or credentials, rotate them after upgrading; pin versions and review changes before updating tools your agents run.
What happened
- An authenticated user with permission to create or modify workflows could abuse crafted expressions using arrow functions to bypass the expression sandbox. [1]
Impact
- Crafted expressions using arrow functions could trigger unintended system command execution on the host running n8n. [1]
What was done
Sources
- GHSA-gv7g-jm28-cr3m — GitHub Advisory Database
Every statement above was checked against these sources before publishing. Spotted an error? Tell us and we will correct it with a dated note.
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n8n: Expression sandbox escape via arrow-function bodies enabling command execution
Product: n8n | Affected: n8n < 2.31.5 and n8n >= 2.32.0, < 2.32.1 | Fixed in: 2.31.5
Summary: An authenticated user with permission to create or modify workflows could abuse crafted expressions using arrow functions to bypass the expression sandbox.
Source & remediation on AgentArmorHQ: https://agentarmorhq.com/incidents/2026/07/ghsa-gv7g-jm28-cr3m-n8nCorrections
Report an error or request a correction. We review requests within 5 business days and add a dated correction note.
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