RHSA-2026:72286 — Security Advisory

An update for ruby is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Important. 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):

• resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses (CVE-2026-80212)

Bug Fix(es) and Enhancement(s):

• ruby %check fails in Konflux: Rinda multicast tests need network device [rhel-9.8.z] (JIRA:RHEL-255606)

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.