Improper Authorization in n8n - #VU139115
Published: July 22, 2026
Vulnerability identifier: #VU139115
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-285
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 disclose sensitive information.
The vulnerability exists due to improper access control in the HTTP Request node genericAuthType credential authorization check when processing an expression-based credential type. A remote user can reference another user's credential identifier in a shared workflow to disclose sensitive information.
Exploitation requires edit access to a shared workflow and knowledge of the target credential's identifier.
Remediation
Install security update from vendor's website.