GHSA-RJG7-R26H-CFP2 Koel: Full-read SSRF via podcast enclosure URL: isPublicHost() filter_var guard does not reject NAT64 (64:ff9b::/96) or 6to4 (2002::/16) IPv6-transition wrappers of internal IPv4

Summary Koel's outbound-URL guard App\Helpers\Network::isPublicHost classifies an IP as "public" using PHP's filtervar$ip, FILTERVALIDATEIP, FILTERFLAGNOPRIVRANGE | FILTERFLAGNORESRANGE. That flag set does not recognise IPv6 transition-address forms that embed a private/loopback/link-local IPv4:...

pydantic-ai: SSRF blocklist bypass via IPv4-compatible, SIIT/IVI, and local NAT64 IPv6 addresses (incomplete fix of CVE-2026-46678)

Summary When an application using Pydantic AI opts a URL into forcedownload='allow-local' which disables the default block on private/internal IPs and runs on a network that routes the affected IPv6 transition forms NAT64- or ISATAP-configured networks, the cloud-metadata blocklist could be...