Incorrect authorization in n8n - CVE-2026-118642
Published: October 14, 2026 / Updated: November 2, 2026
Vulnerability identifier: #VU155721
CSH Severity: Low
CVSS v4: 6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-118642
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose decrypted credentials they are not authorized to access.
The vulnerability exists due to inconsistent authorization checks in credential permission checking for inline sub-workflow nodes when processing nodes with a non-boolean disabled value. A remote user can craft and execute an inline sub-workflow containing a node that bypasses credential permission checking and sends the decrypted credential to a server they control to disclose decrypted credentials they are not authorized to access.
Exploitation requires knowing the identifier of a credential the user cannot access.
Affected software
n8n
How to mitigate CVE-2026-118642
Install security update from vendor's website.
n8n - addressed in versions 1.123.85, 2.43.5, 2.44.1