CVE-2025-22870
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2025-22870.html
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2025-22870
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bullseye | affected | |
| debian | bookworm | affected | |
| debian | trixie | fixed | 1.24.1-1 |
| sles | affected | |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | golang.org/x/net | <0.36.0 | 0.36.0 |
| Go | stdlib | >=1.24.0-0,<1.24.1 | 1.23.7 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-22870
- https://go-review.googlesource.com/q/project:net
- https://go.dev/cl/654697
- https://go.dev/issue/71984
- https://groups.google.com/g/golang-announce/c/4t3lzH3I0eI/m/b42ImqrBAQAJ
- https://pkg.go.dev/vuln/GO-2025-3503
- https://security.netapp.com/advisory/ntap-20250509-0007
- http://www.openwall.com/lists/oss-security/2025/03/07/2
- https://security-tracker.debian.org/tracker/CVE-2025-22870
- https://www.suse.com/security/cve/CVE-2025-22870.html
Verify integrity in audit chain (admin only). AS-IS.