CVE-2026-42449: n8n-mcp's IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders

Ghostwire Analysis — What This Means Practically

• High CVSS score indicates significant risk — exploitation could lead to substantial data exposure or system compromise.
• Exploit code is reported to be available, increasing the likelihood of active exploitation.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.