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Czlonkowski vulnerabilities
Newest
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czlonkowski n8n-mcp
n8n-MCP: Incorrect authorization can expose default-scope workflow version backups in multi-tenant HTTP mode
CVE-2026-55608
Fix available
4.2 Medium
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czlonkowski n8n-mcp
n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments
CVE-2026-54052
Fix available
9.9 Critical
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czlonkowski n8n-mcp
n8n-MCP: Multi-tenant MCP requests fall back to process-level n8n credentials when tenant headers are absent or incomplete
CVE-2026-45707
Fix available
8.1 High
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czlonkowski n8n-mcp
n8n-MCP: Workflow telemetry sanitizer could retain partial values from URL-shaped node parameters
CVE-2026-45582
Fix available
6.5 Medium
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czlonkowski n8n-mcp
n8n-MCP: Authenticated SSRF in n8n-mcp webhook and API client paths
CVE-2026-44694
Fix available
7.2 High
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czlonkowski n8n-mcp
n8n-MCP: IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders
CVE-2026-42449
Fix available
8.5 High
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czlonkowski n8n-mcp
n8n-MCP: Sensitive MCP tool-call arguments logged on authenticated requests in HTTP mode
CVE-2026-42282
Fix available
4.3 Medium
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czlonkowski n8n-mcp
n8n-MCP Logs Sensitive Request Data on Unauthorized /mcp Requests
CVE-2026-41495
Fix available
5.3 Medium
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czlonkowski n8n-mcp
n8n-MCP has an Authenticated SSRF via instance-URL header in multi-tenant HTTP mode
CVE-2026-39974
Fix available
8.5 High