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We have just released Go versions 1.24.1 and 1.23.7, minor point releases.
These minor releases include 1 security fixes following the security policy:
net/http, x/net/proxy, x/net/http/httpproxy: proxy bypass using IPv6 zone IDs
Matching of hosts against proxy patterns could improperly treat an IPv6 zone ID as a hostname component. For example, when the NO_PROXY environment variable was set to "*.example.com", a request to "[::1%25.example.com]:80` would incorrectly match and not be proxied.
Thanks to Juho Forsén of Mattermost for reporting this issue.
This is CVE-2025-22870 and Go issue https://go.dev/issue/71984.