CVE-2025-6442 (Medium) detected in webrick-1.8.1.gem

[mend-bolt-for-github]

CVE-2025-6442 - Medium Severity Vulnerability

Vulnerable Library - webrick-1.8.1.gem

WEBrick is an HTTP server toolkit that can be configured as an HTTPS server, a proxy server, and a virtual-host server.

Library home page: https://rubygems.org/gems/webrick-1.8.1.gem

Path to dependency file: /Gemfile.lock

Path to vulnerable library: /home/wss-scanner/.gem/ruby/3.2.0/cache/webrick-1.8.1.gem

Dependency Hierarchy:

• jekyll-4.3.3.gem (Root Library)
  • ❌ webrick-1.8.1.gem (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Ruby WEBrick read_header HTTP Request Smuggling Vulnerability

Publish Date: 2025-06-25

URL: CVE-2025-6442

CVSS 3 Score Details (5.9)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2025-06-22

Fix Resolution: https://github.com/ruby/webrick.git - v1.8.2

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