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.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-22"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77068.json"
}{
"cpe": [
"cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*",
"cpe:2.3:a:n8n:n8n:2.34.0:*:*:*:*:node.js:*:*"
],
"extracted_events": [
{
"introduced": "2.33.0"
},
{
"fixed": "2.33.4"
},
{
"introduced": "2.34.0"
},
{
"last_affected": "2.34.0"
}
],
"source": [
"CPE_RANGE",
"CPE_STRING"
]
}