GHSA-qxp5-gwg8-xv66MediumCVSS 4.4

HTTP Proxy bypass using IPv6 Zone IDs in golang.org/x/net

Published
March 12, 2025
Last Modified
April 24, 2026

🔗 CVE IDs covered (1)

CVE-2025-22870 →

📋 Description

Matching of hosts against proxy patterns can improperly treat an IPv6 zone ID as a hostname component. For example, when the NO_PROXY environment variable is set to "*.example.com", a request to "[::1%25.example.com]:80` will incorrectly match and not be proxied.

🎯 Affected products1

  • go/golang.org/x/net:< 0.36.0

🔗 References (8)