RHSA-2026:50085 - Security Advisory

Topic

JBoss EAP XP 6.0.5.1 release on the EAP 8.1 base. See references for release notes.

Description

A security update is now available for Red Hat JBoss Enterprise Application Platform 8.1.7.1, XP 6.0.5.1. 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.

Security Fix(es):

• netty-codec-http2: Netty: Denial of Service via unbounded memory allocation in HTTP content decompression (CVE-2026-42587)
• netty-codec-http2: netty-codec-http2: Denial of Service due to resource leak (CVE-2026-48043)

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 - 2477220 - CVE-2026-42587 netty: io.netty/netty-codec-http: io.netty/netty-codec-http2: Netty: Denial of Service via unbounded memory allocation in HTTP content decompression
• BZ - 2488442 - CVE-2026-48043 netty-codec-http2: netty-codec-http2: Denial of Service due to resource leak
• JBEAP-33612 - (xp-6.0.z) Upgrade netty from 4.1.133.Final-redhat-00001 to 4.1.135.Final-redhat-00001

CVEs

• CVE-2026-42587
• CVE-2026-48043

References

• https://access.redhat.com/security/updates/classification/#important
• https://docs.redhat.com/en/documentation/red_hat_jboss_enterprise_application_platform/8.1
• https://docs.redhat.com/en/documentation/red_hat_jboss_enterprise_application_platform/8.1/html-single/red_hat_jboss_eap_xp_6.0_release_notes/index