Code Injection in n8n - CVE-2026-27497
Published: March 13, 2026
Vulnerability identifier: #VU124012
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-27497
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: n8n
Affected software:
n8n
n8n
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in the Merge node. A remote user can send a specially crafted request and execute arbitrary code on the target system.
How to mitigate CVE-2026-27497
Install updates from vendor's website.