RLSA-2025:4063

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.