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.

The remote Fedora 41 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-b10099f608 advisory.

    * Upgrade to Ruby 3.3.10.
    * CVE-2025-58767 ruby: REXML denial of service (rhbz#2396203)



Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2025-1204 advisory.

    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.
    (CVE-2025-58767)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of the REXML Ruby library installed on the remote host is 3.3.3 prior to 3.4.2. It is, therefore, affected by a DoS vulnerability as referenced in GHSA-c2f4-jgmc-q2r5 advisory.

  - 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.
    (CVE-2025-58767)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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.
    (CVE-2025-58767)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
272167	Fedora 41 : ruby (2025-b10099f608)	Nessus	Fedora Local Security Checks	medium
266173	Amazon Linux 2023 : ruby3.2, ruby3.2-bundled-gems, ruby3.2-default-gems (ALAS2023-2025-1204)	Nessus	Amazon Linux Local Security Checks	medium
265895	Ruby REXML 3.3.3 < 3.4.2 DoS vulnerability	Nessus	Misc.	high
265630	Linux Distros Unpatched Vulnerability : CVE-2025-58767	Nessus	Misc.	medium

Detections

Analytics

CVE-2025-58767

medium

Tenable Plugins

medium

medium

high

medium