RHSA-2026:25125HighCVSS 8.7

Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.1.6 security update

Published
June 10, 2026
Last Modified
August 17, 2026

🔗 CVE IDs covered (4)

CVE-2026-1605 →CVE-2026-28367 →CVE-2026-28368 →CVE-2026-28369 →

📋 Description

CVE-2026-1605 — org.eclipse.jetty/jetty-server: Eclipse Jetty: Denial of Service due to unreleased JDK Inflater from compressed HTTP requests CVE-2026-28367 — undertow: Undertow: Request smuggling via \r\r\r as a header block terminator CVE-2026-28368 — undertow: Undertow: Request smuggling via inconsistent header parsing CVE-2026-28369 — undertow: Undertow: Request Smuggling via Malformed HTTP Request Headers

🎯 Affected products54

  • Red Hat JBoss EAP 8.1 for RHEL 8
  • Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-0:2.40.0-7.redhat_00015.1.el8eap.src as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-0:2.40.0-7.redhat_00015.1.el9eap.src as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-cli-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-cli-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-commons-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-commons-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-core-client-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-core-client-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-dto-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-dto-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-hornetq-protocol-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-hornetq-protocol-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-hqclient-protocol-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-hqclient-protocol-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-jakarta-client-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-jakarta-client-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-jakarta-ra-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-jakarta-ra-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-jakarta-server-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-jakarta-server-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-jakarta-service-extensions-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-jakarta-service-extensions-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-jdbc-store-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-jdbc-store-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-activemq-artemis-journal-0:2.40.0-7.redhat_00015.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-activemq-artemis-journal-0:2.40.0-7.redhat_00015.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • +24 more not shown

✅ Remediation

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 Workaround: To mitigate this vulnerability, configure any proxy servers positioned in front of Undertow to strictly validate HTTP header terminations. Ensure that these proxies are configured to reject or normalize non-standard header block terminators, such as `\r\r\r`, before forwarding requests to Undertow. This operational control helps prevent request smuggling attacks by ensuring that only properly formed HTTP requests reach the Undertow server. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

🔗 References (10)