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CVE-2024-39908

Denial of service in REXML

Published: Jul 16, 2024Updated: Nov 3, 2025 Sources: CVE List NVD GHSA BDUCWE-400
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
1.4%
Top 31.5%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

REXML is an XML toolkit for Ruby. The REXML gem before 3.3.1 has some DoS vulnerabilities when it parses an XML that has many specific characters such as `<`, `0` and `%>`. If you need to parse untrusted XMLs, you many be impacted to these vulnerabilities. The REXML gem 3.3.2 or later include the patches to fix these vulnerabilities. Users are advised to upgrade. Users unable to upgrade should avoid parsing untrusted XML strings.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-400

Affected Products

rexmlruby-lang
Library
OSS Libraries / generic-library
bootstrap osnetappHardware Firmware
rexmlRubyGemsOSS Libraries
rexmlruby
Library
OSS Libraries / rubygems
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
ruby-langoss-projectOSS Librariesaka ruby, rexml
netappcommercialUSHardware Firmware
rubygemspackage-ecosystemOSS Libraries
rubyoss-projectJPOSS Libraries
red hat inc.commercialUSOperating Systemsaka red hat
and 6 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/ruby/rexml/security/advisories/GHSA-4xqq-m2hx-25v8
github.com
https://www.ruby-lang.org/en/news/2024/07/16/dos-rexml-cve-2024-39908
ruby-lang.org
https://lists.debian.org/debian-lts-announce/2025/01/msg00011.html
lists.debian.org
and 16 more references View all →

Timeline

Published
Jul 16, 2024
Last Updated
Nov 3, 2025

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