Vulnerability Monitor

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CVE-2025-58767

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.

Published

2025-09-17T18:15:52.857

Last Modified

2025-09-30T13:07:07.207

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

Weaknesses

Type: Primary
CWE-400

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	ruby-lang	rexml	< 3.4.2	Yes

References

https://github.com/ruby/rexml/commit/5859bdeac792687eaf93d8e8f0b7e3c1e2ed5c23 Patch ([email protected])
https://github.com/ruby/rexml/security/advisories/GHSA-c2f4-jgmc-q2r5 Vendor Advisory ([email protected])