Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
Sign in to view the affected projects.
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-jxx9-px88-pj69 | n8n-MCP: Multi-tenant MCP requests fall back to process-level n8n credentials when tenant headers are absent or incomplete |
Mon, 01 Jun 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 01 Jun 2026 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
N8n-mcp
N8n-mcp n8n-mcp |
|
| CPEs | cpe:2.3:a:n8n-mcp:n8n-mcp:*:*:*:*:*:*:*:* | |
| Vendors & Products |
N8n-mcp
N8n-mcp n8n-mcp |
Fri, 29 May 2026 15:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Czlonkowski
Czlonkowski n8n-mcp |
|
| Vendors & Products |
Czlonkowski
Czlonkowski n8n-mcp |
Fri, 29 May 2026 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.51.2, when ENABLE_MULTI_TENANT=true, the HTTP transport documents that the target n8n instance is selected per-request from x-n8n-url / x-n8n-key headers. Requests that omitted those headers — or supplied only one of them — silently fell back to the process-level N8N_API_URL / N8N_API_KEY credentials configured for the operator's own n8n instance. As a result, an authenticated MCP tenant could cause n8n management calls to execute against the operator's instance instead of its own. This affects HTTP-mode deployments of n8n-mcp that are run as a shared multi-tenant service. Single-tenant deployments (ENABLE_MULTI_TENANT unset or false) are not affected. This vulnerability is fixed in 2.51.2. | |
| Title | n8n-MCP: Multi-tenant MCP requests fall back to process-level n8n credentials when tenant headers are absent or incomplete | |
| Weaknesses | CWE-284 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-01T19:06:14.985Z
Reserved: 2026-05-13T04:38:01.166Z
Link: CVE-2026-45707
Updated: 2026-06-01T19:06:02.249Z
Status : Analyzed
Published: 2026-05-29T14:16:31.240
Modified: 2026-06-01T18:39:40.983
Link: CVE-2026-45707
No data.
OpenCVE Enrichment
Updated: 2026-05-29T15:30:04Z
Github GHSA