RHSA-2026:4832 - Security Advisory

Topic

An update for java-1.8.0-ibm is now available for Red Hat Enterprise Linux 8.

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

IBM Java SE version 8 includes the IBM Java Runtime Environment and the IBM Java Software Development Kit.

Security Fix(es):

• openjdk: Improve JMX connections (Oracle CPU 2026-01) (CVE-2026-21925)
• openjdk: Improve HttpServer Request handling (Oracle CPU 2026-01) (CVE-2026-21933)
• openjdk: Enhance Certificate Checking (Oracle CPU 2026-01) (CVE-2026-21945)

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 8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le

Fixes

• BZ - 2429924 - CVE-2026-21925 openjdk: Improve JMX connections (Oracle CPU 2026-01)
• BZ - 2429926 - CVE-2026-21933 openjdk: Improve HttpServer Request handling (Oracle CPU 2026-01)
• BZ - 2429927 - CVE-2026-21945 openjdk: Enhance Certificate Checking (Oracle CPU 2026-01)

CVEs

• CVE-2026-21925
• CVE-2026-21933
• CVE-2026-21945

References

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