RHSA-2026:0386: Important: Red Hat JBoss Enterprise Application Platform 8.1.3 security update

Red Hat JBoss Enterprise Application Platform 8 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Entrprise Application Platform 8.1.3 serves as a replacement for Red Hat JBoss Enterprise Application Platform 8.1.2, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 8.1.3 Release Notes for information about the most significant bug fixes and enhancements included in this release.Security Fix(es): undertow-core: Undertow HTTP Server Fails to Reject Malformed Host Headers Leading to Potential Cache Poisoning and SSRF [eap-8.1.z] (CVE-2025-12543) undertow: OutOfMemory when parsing form data encoding with application/x-www-form-urlencoded [eap-8.1.z] (CVE-2024-3884) undertow-core: Undertow MadeYouReset HTTP/2 DDoS Vulnerability [eap-8.1.z] (CVE-2025-9784) 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.

— Red Hat