CVE-2026-77068: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in n8n-io n8n
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.
AI Analysis
Technical Summary
CVE-2026-77068 is a remote code execution vulnerability affecting n8n versions prior to 2.33.4 and 2.34.x prior to 2.34.1. The flaw resides in the @n8n/workflow-sdk node-schema loader used for MCP node-schema loading. This loader constructs a node's schema module path directly from an attacker-controlled node type string without validating for path traversal sequences. An authenticated user with global:member privileges can exploit this by referencing malicious files through path traversal, resulting in code execution within the n8n main process.
Potential Impact
Successful exploitation allows an authenticated user with global:member privileges to execute arbitrary code in the n8n main process, potentially compromising the system running n8n. This elevates the risk of unauthorized control over the affected environment.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to trusted users only and monitor for suspicious activity related to node type inputs. Avoid granting global:member privileges to untrusted users.
CVE-2026-77068: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in n8n-io n8n
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.
CVSS v4.0
Score 8.7high
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-77068 is a remote code execution vulnerability affecting n8n versions prior to 2.33.4 and 2.34.x prior to 2.34.1. The flaw resides in the @n8n/workflow-sdk node-schema loader used for MCP node-schema loading. This loader constructs a node's schema module path directly from an attacker-controlled node type string without validating for path traversal sequences. An authenticated user with global:member privileges can exploit this by referencing malicious files through path traversal, resulting in code execution within the n8n main process.
Potential Impact
Successful exploitation allows an authenticated user with global:member privileges to execute arbitrary code in the n8n main process, potentially compromising the system running n8n. This elevates the risk of unauthorized control over the affected environment.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to trusted users only and monitor for suspicious activity related to node type inputs. Avoid granting global:member privileges to untrusted users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-20T10:51:39.783Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a86e706acd9273b498befa6
Added to database: 08/20/2026, 11:37:42 UTC
Last enriched: 08/20/2026, 11:54:07 UTC
Last updated: 08/20/2026, 17:39:11 UTC
Views: 3
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