An update for the ruby:3.1 module is now available for Red Hat Enterprise Linux
 8.

Red Hat Product Security has rated this update as having a security impact of
 Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Ruby is an extensible, interpreted, object-oriented, scripting language. It has
 features to process text files and to perform system management tasks.

Security Fix(es):

* rexml: DoS vulnerability in REXML (CVE-2024-39908)

* rexml: rubygem-rexml: DoS when parsing an XML having many specific characters
 such as whitespace character, >] and ]> (CVE-2024-41123)

* rexml: DoS vulnerability in REXML (CVE-2024-41946)

* rexml: DoS vulnerability in REXML (CVE-2024-43398)

* CGI: ReDoS in CGI::Util#escapeElement (CVE-2025-27220)

* CGI: Denial of Service in CGI::Cookie.parse (CVE-2025-27219)

* uri: userinfo leakage in URI#join, URI#merge and URI#+ (CVE-2025-27221)

For more details about the security issue(s), including the impact, a CVSS
 score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2024-39908: Uncontrolled Resource Consumption (CWE-400)
CVE-2024-41123: Uncontrolled Resource Consumption (CWE-400)
CVE-2024-41946: Uncontrolled Resource Consumption (CWE-400)
CVE-2024-43398: Improper Restriction of Recursive Entity References in DTDs
 ('XML Entity Expansion') (CWE-776)
CVE-2025-27219: Allocation of Resources Without Limits or Throttling (CWE-770)
CVE-2025-27220: Inefficient Regular Expression Complexity (CWE-1333)
CVE-2025-27221: Improper Removal of Sensitive Information Before Storage or
 Transfer (CWE-212)