# n8n-mcp (npm) vulnerabilities

9 known vulnerabilities (1 critical, 4 high, 4 medium), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: not known (cve.now hasn't read this package's releases)
- Newest unaffected release: not known without release data
- Weekly downloads: 83.2K
- Dependents: 0
- Registry: https://www.npmjs.com/package/n8n-mcp

## Advisories (9)

### [CVE-2026-55608](https://cve.now/CVE-2026-55608): n8n-MCP: Incorrect authorization can expose default-scope workflow version backups in multi-tenant HTTP mode

- Severity: Medium 4.2
- Published: Jul 15, 2026
- Affected: fixed in 2.57.4.

### [CVE-2026-54052](https://cve.now/CVE-2026-54052): n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments

- Severity: Critical 9.9
- Published: Jul 15, 2026
- Affected: fixed in 2.56.1.

### [CVE-2026-45582](https://cve.now/CVE-2026-45582): n8n-MCP: Workflow telemetry sanitizer could retain partial values from URL-shaped node parameters

- Severity: Medium 6.5
- Published: May 29, 2026
- Affected: fixed in 2.51.3.

### [CVE-2026-45707](https://cve.now/CVE-2026-45707): n8n-MCP: Multi-tenant MCP requests fall back to process-level n8n credentials when tenant headers are absent or incomplete

- Severity: High 8.1
- Published: May 29, 2026
- Affected: fixed in 2.51.2.

### [CVE-2026-44694](https://cve.now/CVE-2026-44694): n8n-MCP: Authenticated SSRF in n8n-mcp webhook and API client paths

- Severity: High 7.2
- Published: May 8, 2026
- Affected: from 2.18.7, fixed in 2.50.2.

### [CVE-2026-42282](https://cve.now/CVE-2026-42282): n8n-MCP: Sensitive MCP tool-call arguments logged on authenticated requests in HTTP mode

- Severity: Medium 4.3
- Published: May 8, 2026
- Affected: fixed in 2.47.13.

### [CVE-2026-41495](https://cve.now/CVE-2026-41495): n8n-MCP Logs Sensitive Request Data on Unauthorized /mcp Requests

- Severity: Medium 5.3
- Published: May 8, 2026
- Affected: fixed in 2.47.11.

### [CVE-2026-42449](https://cve.now/CVE-2026-42449): n8n-MCP: IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders

- Severity: High 8.5
- Published: May 7, 2026
- Affected: from 2.47.4, fixed in 2.47.14.

### [CVE-2026-39974](https://cve.now/CVE-2026-39974): n8n-MCP has an Authenticated SSRF via instance-URL header in multi-tenant HTTP mode

- Severity: High 8.5
- Published: Apr 9, 2026
- Affected: fixed in 2.47.4.

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