n8n before 2.33.4 and 2.34.x before 2.34.1 contain a remote code execution vulnerability in the @n8n/workflow-sdk node-schema loader used for MCP node-schema loading. The loader derives a node's schema module path directly from the attacker-supplied node type string without validating path-traversal sequences. An authenticated user with global:member privileges can reference malicious files via path traversal, causing code execution in the n8n main process.
History

Tue, 25 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 20 Aug 2026 11:45:00 +0000

Type Values Removed Values Added
Description n8n before 2.33.4 and 2.34.x before 2.34.1 contain a remote code execution vulnerability in the @n8n/workflow-sdk node-schema loader used for MCP node-schema loading. The loader derives a node's schema module path directly from the attacker-supplied node type string without validating path-traversal sequences. An authenticated user with global:member privileges can reference malicious files via path traversal, causing code execution in the n8n main process.
Title n8n before 2.34.1 Remote Code Execution via Path Traversal
First Time appeared N8n
N8n n8n
Weaknesses CWE-22
CPEs cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
Vendors & Products N8n
N8n n8n
References
Metrics cvssV4_0

{'score': 8.7, 'vector': '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-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-08-20T11:21:04.945Z

Updated: 2026-08-25T14:26:48.904Z

Reserved: 2026-08-20T10:51:39.783Z

Link: CVE-2026-77068

cve-icon Vulnrichment

Updated: 2026-08-25T14:26:43.420Z

cve-icon NVD

Status : Received

Published: 2026-08-20T12:16:37.963

Modified: 2026-08-25T15:16:43.593

Link: CVE-2026-77068

cve-icon Redhat

No data.