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Status published
Medium
CVE-2024-49761
REXML ReDoS vulnerability
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
ruby
View all reports →Affected Software
rexml
Vulnerable Versions:
< 3.3.9
Timeline
Official Publish:
October 28th, 2024
Last Modified:
November 3rd, 2025
Added to House:
July 22nd, 2026