RHSA-2026:70421 - Security Advisory

Topic

JBoss EAP XP 6.0.6.GA release on the EAP 8.1 base. See references for release notes.

Description

This is a cumulative patch release zip for the JBoss EAP XP 6.0.6 runtime distribution for use with EAP 8.1.8.

Security Fix(es):

• netty-codec-http2: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood [eapxp-6] (CVE-2026-33871)
• zookeeper: Apache ZooKeeper: Impersonation of servers or clients via reverse DNS spoofing [eapxp-6] (CVE-2026-24281)
• zookeeper: Apache ZooKeeper: Information disclosure via improper handling of configuration values [eapxp-6] (CVE-2026-24308)

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

Before applying the update, make sure all previously released errata relevant to your system have been applied. Also, back up your existing installation, including all applications, configuration files, databases and database settings. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258

Affected Products

• JBoss Enterprise Application Platform Text-Only Advisories x86_64

Fixes

• BZ - 2445449 - CVE-2026-24281 Apache ZooKeeper: Apache ZooKeeper: Impersonation of servers or clients via reverse DNS spoofing
• BZ - 2445451 - CVE-2026-24308 Apache ZooKeeper: Apache ZooKeeper: Information disclosure via improper handling of configuration values
• BZ - 2452456 - CVE-2026-33871 netty: Netty: Denial of Service via HTTP/2 CONTINUATION frame flood
• JBEAP-33582 - Red Hat JBoss Enterprise Application Platform 8.1.8 XP 6.0.x.GA release

CVEs

• CVE-2026-24281
• CVE-2026-24308
• CVE-2026-33871

References

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