CVE-2025-58767 (High) detected in rexml-3.4.1.gem

[mend-bolt-for-github]

CVE-2025-58767 - High Severity Vulnerability

Vulnerable Library - rexml-3.4.1.gem

An XML toolkit for Ruby

Library home page: https://rubygems.org/gems/rexml-3.4.1.gem

Path to dependency file: /Gemfile.lock

Path to vulnerable library: /Gemfile.lock

Dependency Hierarchy:

• jemoji-0.13.0.gem (Root Library)
  • jekyll-4.4.1.gem
    • kramdown-parser-gfm-1.1.0.gem
      • kramdown-2.5.1.gem
        • ❌ rexml-3.4.1.gem (Vulnerable Library)

Found in base branch: master

Vulnerability Details

REXML is an XML toolkit for Ruby. The REXML gems from 3.3.3 to 3.4.1 has a DoS vulnerability when parsing XML containing multiple XML declarations. If you need to parse untrusted XMLs, you may be impacted to these vulnerabilities. The REXML gem 3.4.2 or later include the patches to fix these vulnerabilities.

Publish Date: 2025-09-17

URL: CVE-2025-58767

CVSS 3 Score Details (7.5)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-c2f4-jgmc-q2r5

Release Date: 2025-09-17

Fix Resolution: https://github.com/ruby/rexml.git - v3.4.2

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