Description (CNA)
n8n versions before 2.34.1 contain a credential validation bypass in the MCP create_workflow_from_code tool when authentication type is set to an expression. Attackers with a valid MCP Bearer API key and knowledge of a target credential ID can persist unauthorized cross-project credential references on workflows in different projects.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n8n-io / n8n | affected 2.34.0 before 2.34.1; unaffected 2.34.1 |
| n8n-io / n8n | affected 2.0.0 before 2.33.4; unaffected 2.33.4 |
CWE
CWE-639
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-vfrj-582q-mvcp
- https://www.vulncheck.com/advisories/n8n-before-cross-project-credential-access-via-mcp
ADP enrichment
No English description supplied.
No references supplied.