Improper privilege management in n8n - #VU127200
Published: April 23, 2026
Vulnerability identifier: #VU127200
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-269
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 bypass single sign-on enforcement and create a local password for direct authentication.
The vulnerability exists due to improper privilege management in the n8n API when handling requests to disable SSO enforcement for the user's own account. A remote user can disable SSO enforcement and create local credentials to bypass single sign-on enforcement and create a local password for direct authentication.
This can bypass the organization's centralized identity management and identity-provider-enforced multi-factor authentication.
Remediation
Install security update from vendor's website.