AI agent vulnerability · n8n

GHSA-gv7g-jm28-cr3m: n8n: Expression sandbox escape via arrow-function bodies enabling command execution

highCVSS 4.0 8.7

Impact An authenticated user with permission to create or modify workflows could abuse crafted expressions using arrow functions to bypass the expression sandbox, triggering unintended system command execution on the host running n8n. Patches The issue has been fixed in n8n versions 2.31.5 and 2.32.1. Users should upgrade to one of these versions or later to remediate the vulnerability.

Published Jul 22, 2026 · Updated Jul 27, 2026

Affected packages

n8n

Ecosystem: npm
Affected: >= 2.32.0, < 2.32.1
Fixed in: 2.32.1
Check: npm ls n8n

n8n

Ecosystem: npm
Affected: < 2.31.5
Fixed in: 2.31.5
Check: npm ls n8n

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

Impact

An authenticated user with permission to create or modify workflows could abuse crafted expressions using arrow functions to bypass the expression sandbox, triggering unintended system command execution on the host running n8n.

Patches

The issue has been fixed in n8n versions 2.31.5 and 2.32.1. Users should upgrade to one of these versions or later to remediate the vulnerability.

Workarounds

If upgrading is not immediately possible, administrators should consider the following temporary mitigations:

Restrict n8n instance access to fully trusted users only.
Restrict workflow creation and editing permissions to fully trusted users only.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Credited to inaor.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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