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CVE-2024-41946

22
FAUCET Score

CVE-2024-41946 is a Denial of Service (DoS) vulnerability affecting the REXML gem (version 3.3.2 and earlier) in Ruby, occurring when parsing XML with numerous entity expansions using SAX2 or pull parser APIs. With a CVSS score of 7.5 (HIGH), this vulnerability is remotely exploitable with low attack complexity, potentially leading to system unavailability. While no active exploitation, public exploit code, or significant community discussion has been observed, organizations using affected REXML versions should upgrade to 3.3.3 or later to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.3.3CPE matchmatch criteria
cpe:2.3:a:ruby-lang:rexml:*:*:*:*:*:ruby:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.19%
Probability of exploitation in next 30 days
EPSS Percentile
64.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0119 is in the 43rd percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (39)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: azl3 ruby 3.3.3-2 on Azure Linux 3.0Fixed in: 3.3.3-2
microsoftpatch availablevia msrc
Product: 17737-17084Fixed in: 3.3.4-1
microsoftpatch availablevia msrc
Product: 17670-17084Fixed in: 3.3.3-2
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 3.3.3-2
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 3.3.4-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 3.3.3-2
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 3.3.4-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 3.1.4-7
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 3.2.7-2
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 3.1.4-7
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 3.2.7-2
microsoftpatch availablevia msrc
Product: cbl2 rubygem-rexml 3.2.7-2 on CBL Mariner 2.0Fixed in: 3.2.7-2
microsoftpatch availablevia msrc
Product: cbl2 rubygem-rexml 3.2.7-4 on CBL Mariner 2.0Fixed in: 3.2.7-2
microsoftpatch availablevia msrc
Product: cbl2 ruby 3.1.4-7 on CBL Mariner 2.0Fixed in: 3.1.4-7
microsoftpatch availablevia msrc
Product: cbl2 ruby 3.1.4-9 on CBL Mariner 2.0Fixed in: 3.1.4-7
microsoftpatch availablevia msrc
Product: azl3 rubygem-rexml 3.3.4-1 on Azure Linux 3.0Fixed in: 3.3.4-1
microsoftpatch availablevia msrc
Product: azl3 rubygem-rexml 3.2.8-1 on Azure Linux 3.0Fixed in: 3.3.4-1
microsoftpatch availablevia msrc
Product: 17264-16823Fixed in: 3.2.7-2
microsoftpatch availablevia msrc
Product: 19724-17086Fixed in: 3.2.7-2
microsoftpatch availablevia msrc
Product: 17267-16823Fixed in: 3.1.4-7
microsoftpatch availablevia msrc
Product: 19723-17086Fixed in: 3.1.4-7
microsoftpatch availablevia msrc
Product: 17669-17084Fixed in: 3.3.4-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: ruby:3.3-8100020240906074654.489197e6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: ruby:3.1-8100020250407112943.489197e6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: pcs-0:0.10.18-2.el8_10.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceFixed in: pcs-0:0.10.12-6.el8_6.6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsFixed in: pcs-0:0.10.12-6.el8_6.6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: pcs-0:0.10.15-4.el8_8.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: ruby:3.3-9040020240906110954.9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: ruby:3.1-9050020250404144903.9
View patch
rubygemspatch availablevia ghsa
Product: rexmlFixed in: 3.3.3
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: pcs
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: ruby:3.0/ruby
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenStack Platform 16.1Fixed in: puppet-datacat
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenStack Platform 16.1Fixed in: puppet-etcd
redhatvendor investigatingvia redhat_api
Product: Red Hat Satellite 6Fixed in: foreman
redhatvendor investigatingvia redhat_api
Product: Red Hat Satellite 6Fixed in: foreman-proxy
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: ruby:2.5/ruby

Vendor Advisories (4)

microsoft2024-Oct/CVE-2024-41946

CVE-2024-41946

Oct 8, 2024
microsoft2024-Aug/CVE-2024-41946Important

REXML DoS vulnerability

Aug 13, 2024
rubygemsGHSA-5866-49gr-22v4medium

REXML DoS vulnerability

Aug 2, 2024
redhatCVE-2024-41946Low

rexml: DoS vulnerability in REXML

Aug 1, 2024

References

lists.debian.org / debian-lts-announce/2025/01/msg00011.html
security.netapp.com / advisory/ntap-20250117-0007
github.com / ruby/rexml/commit/033d1909a8f259d5a7c53681bcaf14f13bcf0368
Patch
github.com / ruby/rexml/security/advisories/GHSA-5866-49gr-22v4
Vendor Advisory
ruby-lang.org / en/news/2008/08/23/dos-vulnerability-in-rexml
Not Applicable
ruby-lang.org / en/news/2024/08/01/dos-rexml-cve-2024-41946
Vendor Advisory