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CVE-2026-44430 MCP Registry: Unauthenticated SSRF: HTTP namespace verification dials 6to4 / NAT64 / site-local IPv6 addresses, bypassing private-address allowlist

🗓️ 14 May 2026 21:02:40Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 1 Views

Unauthenticated SSRF in MCP Registry HTTP verification bypasses allowlists via IPv6 6to4 NAT64.

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15 Jul 2026 01:49Current
6.1Medium risk
Vulners AI Score6.1
CVSS 46.3
EPSS0.00285
1