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CVE-2026-72765

HIGH

n8n: Expression sandbox escape via arrow-function bodies enabling command execution

Published July 22, 2026Updated August 12, 2026Source: osv

Summary

## 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.

Remediation

Upgrade to the fixed version using your package manager.

npm
Update n8n to 2.31.5 or later
npm install n8n@2.31.5
npm
Update n8n to 2.32.1 or later
npm install n8n@2.32.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (2)

PackageEcosystemAffectedFixed In
n8n
npm
All versions2.31.5
n8n
npm
All versions2.32.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
—
Confidentiality
—
Integrity
—
Availability
—

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

Frequently Asked Questions

What is CVE-2026-72765?
n8n: Expression sandbox escape via arrow-function bodies enabling command execution This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.8/10).
How do I check if my project is affected by CVE-2026-72765?
CVE-2026-72765 affects n8n. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-72765 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.8

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-gv7g-jm28-cr3m

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