CVE-2026-85166
n8n before 2.36.2 Credential Exfiltration via Workflow Tool Node
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
n8n before 2.35.4 and 2.36.x before 2.36.2 does not validate credential references in the inline workflow JSON of nodes that execute an inline sub-workflow (e.g., the Workflow Tool node). A shared-workflow editor, or any user creating/updating a workflow via the REST API, Public API, or MCP, can persist a node referencing a credential they do not own. When the workflow is later executed under an identity that holds the credential, the inline sub-workflow resolves the secret and can send it to an attacker-controlled endpoint, resulting in credential exfiltration.
| CWE | CWE-863 |
| Vendor | n8n-io |
| Product | n8n |
| Published | Sep 3, 2026 |
| Last Updated | Sep 3, 2026 |
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Affected Versions
n8n-io / n8n
0 < 2.36.2
n8n-io / n8n
0 < 2.35.4
References
Credits
🔍 Solidscripting