SB2026031350 - Authenticated OS command injection in n8n
Published: March 13, 2026
Security Bulletin ID
SB2026031350
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Protection mechanism failure (CVE-ID: CVE-2026-27498)
CWE-ID: CWE-693 - Protection Mechanism Failure
CVSSv4: 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/E:U/U:Green
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.
Remediation
Install update from vendor's website.