CVE-2026-27498 — Vulnerability in n8n — CVE Details

CRITICAL

n8n has Arbitrary Command Execution via File Write and Git Operations

Published February 25, 2026Updated February 28, 2026Source: osv

Summary

## Impact An authenticated user with permission to create or modify workflows could chain the Read/Write Files from Disk node with git operations to achieve remote code execution. By writing to specific configuration files and then triggering a git operation, the attacker could execute arbitrary shell commands on the n8n host. ## Patches The issue has been fixed in n8n versions 2.2.0 and 1.123.8. 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: - Limit workflow creation and editing permissions to fully trusted users only. - Disable the Read/Write Files from Disk node by adding `n8n-nodes-base.readWriteFile` to the `NODES_EXCLUDE` environment variable. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Advisory Timeline

First published February 25, 2026 (229 days ago).
Last revised February 28, 2026 — 2 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

npm

Update n8n to 2.2.0 or later

npm install n8n@2.2.0

npm

Update n8n to 1.123.8 or later

npm install n8n@1.123.8

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

Affected Packages (2)

Affects 1 ecosystem: npm (1).

Package	Ecosystem	Affected	Fixed In
n8n	npm	All versions	2.2.0
n8n	npm	All versions	1.123.8

Vulnerability Classification

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

CWE-94
Code InjectionMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.5 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2026-27498?: n8n has Arbitrary Command Execution via File Write and Git Operations This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 8.5/10).
How do I check if my project is affected by CVE-2026-27498?: CVE-2026-27498 affects n8n. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-27498 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

8.5

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-x2mw-7j39-93xq

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