CVE-2026-25056 CRITICAL

CVE-2026-25056: n8n Arbitrary File Write leading to RCE in n8n Merge Node

Vendor N8N-Io
Product n8n
Weakness CWE-434 · Unrestricted file upload
Published February 4, 2026
Last update February 5, 2026

CVSS base score

9.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

n8n is an open source workflow automation platform. Prior to versions 1.118.0 and 2.4.0, a vulnerability in the Merge node's SQL Query mode allowed authenticated users with permission to create or modify workflows to write arbitrary files to the n8n server's filesystem potentially leading to remote code execution. This issue has been patched in versions 1.118.0 and 2.4.0.

Key dates

02Disclosure timeline

February 4, 2026 CVE published
February 5, 2026 Record updated