CVE-2026-77068

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.

• CWE-22

• https://github.com/n8n-io/n8n/security/advisories/GHSA-6h4x-896x-fw5mMitigation, Vendor Advisory
• https://www.vulncheck.com/advisories/n8n-before-remote-code-execution-via-path-traversalThird Party Advisory

Published

Aug 20, 2026

Last Modified

Sep 1, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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