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GHSA-56C3-VFP2-5QQJ n8n-mcp's IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders

🗓️ 30 Apr 2026 18:12:54Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 5 Views

IPv4-mapped IPv6 bypasses SSRF protection in validateUrlSync, affecting v2.47.4–v2.47.13.

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11 May 2026 13:53Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.18.5
EPSS0.00206
5