n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| czlonkowski | n8n-mcp | affected |
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| Czlonkowski | N8n-mcp |
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| Source | ID | Title |
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Github GHSA |
GHSA-j6r7-6fhx-77wx | n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.388% probability within 30 days)
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ssvc
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| First Time appeared |
Czlonkowski
Czlonkowski n8n-mcp |
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| Vendors & Products |
Czlonkowski
Czlonkowski n8n-mcp |
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| Description | n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.56.1, in HTTP mode with multi-tenancy enabled through ENABLE_MULTI_TENANT=true, n8n-mcp's local workflow version history backups were not isolated per tenant, allowing an authenticated tenant to read workflow version snapshots belonging to other tenants and delete or destroy other tenants' stored backups, including full node definitions, credential references, and authorization headers. This issue is fixed in version 2.56.1. | |
| Title | n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments | |
| Weaknesses | CWE-639 CWE-862 |
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| Metrics |
cvssV3_1
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