Path traversal in n8n - #VU140988
Published: August 5, 2026
Vulnerability identifier: #VU140988
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:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to path traversal in the @n8n/workflow-sdk node-schema loader when deriving a schema module path from an attacker-supplied node type string. A remote user can supply a crafted node type string to execute arbitrary code.
The code executes in the n8n main process.
Affected software
n8n
Remediation
Install security update from vendor's website.
n8n - addressed in versions 2.33.4, 2.34.1