CVSS 3.1
4.4 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:LCVE-2025-22870
Medium (4.4). EPSS 0.4% chance of exploitation in the next 30 days. Fixed in golang.org/x/net 0.36.0.
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.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-31)
- CWE
- CWE-115
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-qxp5-gwg8-xv66 | Go | golang.org/x/net | <0.36.0 | 0.36.0 |
| GO-2025-3503 | Go | stdlib | <1.23.7 >=1.24.0-0 <1.24.1 | 1.23.7, 1.24.1 |
| GO-2025-3503 | Go | golang.org/x/net | <0.36.0 | 0.36.0 |