RHSA-2026:95512 - Security Advisory

Topic

An update for the ruby:2.5 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.

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.

Description

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)
• rubygem-mongo: MongoDB Ruby Driver: Data disclosure and denial of service via query-operator injection (CVE-2026-88030)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Life Cycle Long Life 8.4 x86_64
• Red Hat Enterprise Linux Server - AUS 8.4 x86_64

Fixes

• BZ - 2525066 - CVE-2026-80212 resolv: resolv gem: Denial of Service via uncontrolled memory growth from crafted DNS responses
• BZ - 2531585 - CVE-2026-88030 rubygem-mongo: MongoDB Ruby Driver: Data disclosure and denial of service via query-operator injection

CVEs

• CVE-2026-80212
• CVE-2026-88030

References

• https://access.redhat.com/security/updates/classification/#important