Red Hat Product Errata RHSA-2026:25126 - Security Advisory Issued: 2026-06-10 Updated: 2026-06-10 RHSA-2026:25126 - Security Advisory Overview Synopsis Important: Red Hat JBoss Enterprise Application Platform 8.1.6 security update Type/Severity Security Advisory: Important Topic A security update is now available for Red Hat JBoss Enterprise Application Platform 8.1. 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. Description Red Hat JBoss Enterprise Application Platform 8 is a platform for Java applications based on the WildFly application runtime. This asynchronous patch is an update for Red Hat JBoss Enterprise Application Platform 8.1. See Release Notes for information about the most significant bug fixes and enhancements included in this release. Security Fix(es): jetty-server: Eclipse Jetty: Denial of Service due to unreleased JDK Inflater from compressed HTTP requests important (CVE-2026-1605) undertow-core: Undertow: Request Smuggling via Malformed HTTP Request Headers (CVE-2026-28369) undertow-core: Undertow: Request smuggling via inconsistent header parsing (CVE-2026-28368) undertow-core: Undertow: Request smuggling via `\r\r\r` as a header block terminator (CVE-2026-28367) 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 - 2443260 - CVE-2026-28367 undertow: Undertow: Request smuggling via `\r\r\r` as a header block terminator BZ - 2443261 - CVE-2026-28368 undertow: Undertow: Request smuggling via inconsistent header parsing BZ - 2443262 - CVE-2026-28369 undertow: Undertow: Request Smuggling via Malformed HTTP Request Headers BZ - 2444815 - CVE-2026-1605 org.eclipse.jetty/jetty-server: Eclipse Jetty: Denial of Service due to unreleased JDK Inflater from compressed HTTP requests CVEs CVE-2026-1605 CVE-2026-28367 CVE-2026-28368 CVE-2026-28369 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/release_notes_for_red_hat_jboss_enterprise_application_platform_8.1/index https://access.redhat.com/articles/7129481 The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .