GHSA-56c3-vfp2-5qqj
High · 8.5CVSS
8.5
EPSS
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Published
Apr 30, 2026
CISA due date
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The record
n8n-mcp's IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | n8n-mcp | 2.47.4 | 2.47.14 |
Related vulnerabilities
- CVE-2026-42449 n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation… Same vulnerability
- CVE-2026-45707 n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation… Also affects n8n-mcp
- CVE-2026-45582 n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation… Also affects n8n-mcp
- GHSA-jxx9-px88-pj69 n8n-MCP: Multi-tenant MCP requests fall back to process-level n8n credentials when tenant… Also affects n8n-mcp
- GHSA-f3rg-xqjj-cj9w n8n-MCP: Workflow telemetry sanitizer could retain partial values from URL-shaped node… Also affects n8n-mcp
- CVE-2026-42282 n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation… Also affects n8n-mcp
- CVE-2026-44694 n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation… Also affects n8n-mcp
- CVE-2026-41495 n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation… Also affects n8n-mcp