Resource exhaustion in Ruby Rexml
CVE-2024-39908
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 thes…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.076 (92.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
Affected products
- Ruby Rexml — versions < 3.3.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/ruby/rexml/security/advisories/GHSA-4xqq-m2hx-25v8 (x_refsource_CONFIRM)
- https://www.ruby-lang.org/en/news/2024/07/16/dos-rexml-cve-2024-39908 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-39908?
- CVE-2024-39908 is a medium-severity vulnerability in Ruby Rexml, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2024-07-16.
- How severe is CVE-2024-39908?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2024-39908 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.