CVE-2024-39908

moderate-risk
Published 2024-07-16

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.

Do I need to act?

~
6.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.3/10 Medium
NETWORK / LOW complexity

Affected Products (2)

Rexml

Affected Vendors

Netapp Ruby-Lang

References (6)

Vendor Advisory https://github.com/ruby/rexml/security/advisories/GHSA-4xqq-m2hx-25v8
Vendor Advisory https://www.ruby-lang.org/en/news/2024/07/16/dos-rexml-cve-2024-39908
Vendor Advisory https://github.com/ruby/rexml/security/advisories/GHSA-4xqq-m2hx-25v8
https://lists.debian.org/debian-lts-announce/2025/01/msg00011.html
Third Party Advisory https://security.netapp.com/advisory/ntap-20250117-0008/
Vendor Advisory https://www.ruby-lang.org/en/news/2024/07/16/dos-rexml-cve-2024-39908
34
/ 100
moderate-risk
Severity 18/34 · Moderate
Exploitability 9/34 · Low
Exposure 7/34 · Low