Protection mechanism failure in n8n - CVE-2026-27498
Published: March 13, 2026
Vulnerability identifier: #VU124010
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2026-27498
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to bypass implemented security restrictions.
The vulnerability exists due to insufficient implementation of security measures. A remote user can write data to specific configuration files and then triggering a git operation to execute arbitrary shell commands on the system.
Affected software
n8n
How to mitigate CVE-2026-27498
Install updates from vendor's website.
n8n - addressed in versions 1.123.8, 2.2.0