Resource exhaustion in Ruby Rexml
CVE-2024-41946
REXML is an XML toolkit for Ruby. The REXML gem 3.3.2 has a DoS vulnerability when it parses an XML that has many entity expansions with SAX2 or pull parser API. The REXML gem 3.3.3 or later include the patch to fix the vulnerability.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.007 (72.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Ruby Rexml — versions < 3.3.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/ruby/rexml/security/advisories/GHSA-5866-49gr-22v4 (x_refsource_CONFIRM)
- https://github.com/ruby/rexml/commit/033d1909a8f259d5a7c53681bcaf14f13bcf0368 (x_refsource_MISC)
- https://www.ruby-lang.org/en/news/2008/08/23/dos-vulnerability-in-rexml (x_refsource_MISC)
- https://www.ruby-lang.org/en/news/2024/08/01/dos-rexml-cve-2024-41946 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-41946?
- CVE-2024-41946 is a medium-severity vulnerability in Ruby Rexml, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2024-08-01.
- How severe is CVE-2024-41946?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2024-41946 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.