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CVE-2024-49761

Published: Oct 28, 2024

Modified: Nov 3, 2025

PUBLISHED

Description

REXML is an XML toolkit for Ruby. The REXML gem before 3.3.9 has a ReDoS vulnerability when it parses an XML that has many digits between &# and x...; in a hex numeric character reference (&#x...;). This does not happen with Ruby 3.2 or later. Ruby 3.1 is the only affected maintained Ruby. The REXML gem 3.3.9 or later include the patch to fix the vulnerability.

Vendor	Product	Versions
ruby	rexml	affected `< 3.3.9`

Weaknesses (CWE)

References

https://github.com/ruby/rexml/security/advisories/GHSA-2rxp-v6pw-ch6m

x_refsource_CONFIRM

https://github.com/ruby/rexml/commit/ce59f2eb1aeb371fe1643414f06618dbe031979f

x_refsource_MISC

https://www.ruby-lang.org/en/news/2024/10/28/redos-rexml-cve-2024-49761

x_refsource_MISC

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