CVE-2025-22870 (Medium) detected in github.com/golang/net-v0.1.0

[mend-bolt-for-github]

CVE-2025-22870 - Medium Severity Vulnerability

Vulnerable Library - github.com/golang/net-v0.1.0

[mirror] Go supplementary network libraries

Library home page: https://proxy.golang.org/github.com/golang/net/@v/v0.1.0.zip

Path to dependency file: /go.mod

Path to vulnerable library: /go.mod

Dependency Hierarchy:

• github.com/kubernetes/apimachinery-v0.22.0 (Root Library)
  • ❌ github.com/golang/net-v0.1.0 (Vulnerable Library)

Found in HEAD commit: df1f7d3f67826e841793324e4796be4fbd91c00f

Found in base branch: main

Vulnerability Details

In Go net/http, x/net/proxy, x/net/http/httpproxy there is a proxy bypass vulnerability 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. This affects versions before 1.23.7 and 1.24.x before 1.24.1.

Publish Date: 2025-03-12

URL: CVE-2025-22870

CVSS 3 Score Details (4.4)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2025-03-12

Fix Resolution: https://github.com/golang/go.git - go1.24.1

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