CVE-2026-77068 PUBLISHED

n8n before 2.34.1 Remote Code Execution via Path Traversal

Assigner: VulnCheck
Reserved: 20.08.2026 Published: 20.08.2026 Updated: 20.08.2026

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.

Metrics

CVSS 4.0

CVSS 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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	n8n-io
Product	n8n
Versions	Default: unaffected affected from 0 to 2.34.1 (excl.) Version 2.34.1 is unaffected

Vendor	n8n-io
Product	n8n
Versions	Default: unaffected affected from 0 to 2.33.4 (excl.) Version 2.33.4 is unaffected

Credits

Haruna38 reporter

References

Problem Types

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE