Incorrect authorization in n8n - CVE-2026-110850
Published: November 9, 2026 / Updated: November 10, 2026
Vulnerability identifier: #VU163086
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:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-110850
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an authenticated attacker with editor access to a shared n8n workflow to steal the workflow owner's decrypted credentials.
The vulnerability exists due to incomplete credential authorization checks when saving shared workflows containing a Message an Agent node in inline mode, which omit credential references stored in node parameters. An authenticated attacker can reference unauthorized owner credentials in attacker-controlled tools and have the decrypted secrets sent to a destination of their choice.
Affected software
n8n
How to mitigate CVE-2026-110850
Install security update from vendor's website.
n8n - addressed in versions 2.41.4, 2.42.1