REXML is an XML toolkit for Ruby. The REXML gem before 3.3.2 has some DoS vulnerabilities when it parses an XML that has many specific characters such as whitespace character, >] and ]>. The REXML gem 3.3.3 or later include the patches to fix these vulnerabilities.
CVE-2024-41123
This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.3
- EG Score
- 5.3(low)
- EPSS
- 66.7%
- KEV
- Not listed
Published
August 1, 2024
Last Modified
November 3, 2025
References (6)
- security-advisories@githubhttps://github.com/ruby/rexml/security/advisories/GHSA-4xqq-m2hx-25v8
- security-advisories@githubhttps://github.com/ruby/rexml/security/advisories/GHSA-r55c-59qm-vjw6
- security-advisories@githubhttps://github.com/ruby/rexml/security/advisories/GHSA-vg3r-rm7w-2xgh
- security-advisories@githubhttps://www.ruby-lang.org/en/news/2024/08/01/dos-rexml-cve-2024-41123
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/01/msg00011.html
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20241227-0005/
Vendor Advisories for CVE-2024-41123(7)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2025:4488Red Hat Product SecurityMedium
Red Hat Security Advisory: ruby:3.1 security update
- RHSA-2025:4063Red Hat Product SecurityMedium
Red Hat Security Advisory: ruby:3.1 security update
- RHSA-2024:6784Red Hat Product SecurityMedium
Red Hat Security Advisory: ruby:3.3 security update
- RHSA-2024:6785Red Hat Product SecurityMedium
Red Hat Security Advisory: ruby:3.3 security update
- RHSA-2024:6703Red Hat Product SecurityMedium
Red Hat Security Advisory: pcs security update
- RHSA-2024:6702Red Hat Product SecurityMedium
Red Hat Security Advisory: pcs security update
- RHSA-2024:6670Red Hat Product SecurityMedium
Red Hat Security Advisory: pcs security update
Patch Availability(11)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | ruby2.7-doc (2.7.0-5ubuntu1.18) @ focal | 2026-05-23 | ubuntu |
| ubuntu | ruby2.7-doc (2.7.0-5ubuntu1.15) @ focal | 2026-05-23 | ubuntu |
| ubuntu | ruby2.3-tcltk (2.3.1-2~ubuntu16.04.16+esm11) @ xenial | 2026-05-23 | ubuntu |
| ubuntu | ruby3.3-doc (3.3.4-2ubuntu5.1) @ oracular | 2026-05-23 | ubuntu |
| redhat | ruby:3.1-9050020250404144903.9 | 2025-05-06 | redhat |
| redhat | ruby:3.1-8100020250407112943.489197e6 | 2025-04-23 | redhat |
| redhat | ruby:3.3-8100020240906074654.489197e6 | 2024-09-18 | redhat |
| redhat | ruby:3.3-9040020240906110954.9 | 2024-09-18 | redhat |
| redhat | pcs-0:0.10.18-2.el8_10.2 | 2024-09-16 | redhat |
| redhat | pcs-0:0.10.15-4.el8_8.3 | 2024-09-16 | redhat |
| redhat | pcs-0:0.10.12-6.el8_6.6 | 2024-09-16 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
RubyGems(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| rexml | 3.1.7.3 ... 3.3.2 (17 versions) | 3.3.3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(4)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 8× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:26 UTCEPSS rescore
- 2026-07-09 19:09 UTCEPSS rescore
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- 2026-06-27 03:07 UTCEPSS rescore
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- 2026-06-25 13:49 UTCEPSS rescore
- 2026-06-25 08:01 UTCOSV refresh
- 2026-06-24 14:04 UTCEPSS rescore
- 2026-06-24 14:04 UTCEPSS rescore
- 2026-06-23 21:32 UTCEPSS rescore
- 2026-06-23 21:32 UTCEPSS rescore
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- 2026-06-22 14:25 UTCEPSS rescore
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- 2026-06-08 14:16 UTCEPSS rescore
- 2026-06-08 14:16 UTCEPSS rescore
- 2026-06-08 01:58 UTCOSV refresh
- 2026-06-07 15:24 UTCEPSS rescore
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- 2026-06-06 13:46 UTCEPSS rescore
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- 2026-05-29 13:43 UTCEPSS rescore
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- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-23 13:40 UTCEG score recompute
- 2026-05-23 13:40 UTCVendor advisory
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Frequently asked(5)
What is CVE-2024-41123?
When was CVE-2024-41123 disclosed?
Is CVE-2024-41123 actively exploited?
What is the CVSS score of CVE-2024-41123?
How do I remediate CVE-2024-41123?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-41123
Is Your Infrastructure Affected by CVE-2024-41123?
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