In short
- CVE-2025-22870 is a MEDIUM (CVSS 4.4) vulnerability affecting golang.org/x/net, stdlib.
- Chance of exploitation in the next 30 days (EPSS): 0.43%, higher than 36.8% of all vulnerabilities.
- Fix: update to 0.36.0, 1.24.1, 1.23.7 or later.
| Package | Affected versions | Patched versions |
|---|
| golang.org/x/net Go | < 0.36.0
| 0.36.0
|
| stdlib Go | ≥ 1.24.0-0, < 1.24.1< 1.23.7
| 1.24.11.23.7
|
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.
NVD 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.
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