RHSA-2026:20406: Important: Red Hat JBoss Web Server 6.2.3 release and security update

Published May 26, 2026
·
Updated

Important: Red Hat JBoss Web Server 6.2.3 release and security update

Other sources

Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache Tomcat Servlet container, JBoss HTTP Connector (modcluster), the PicketLink Vault extension for Apache Tomcat, and the Tomcat Native library.This release of Red Hat JBoss Web Server 6.2.3 serves as a replacement for Red Hat JBoss Web Server 6.2.2. This release includes bug fixes, enhancements and component upgrades, which are documented in the Release Notes that are linked to in the References section.Security Fix(es): tomcat: Apache Tomcat: HTTP Request/Response Smuggling via invalid chunk extension (CVE-2026-24880) tomcat: Apache Tomcat: Open Redirect vulnerability via LoadBalancerDrainingValve (CVE-2026-25854) tomcat: Apache Tomcat: Authentication bypass due to CLIENTCERT soft fail misconfiguration (CVE-2026-29145) tomcat: Apache Tomcat: Information disclosure via Padding Oracle vulnerability in EncryptInterceptor (CVE-2026-29146) tomcat: Apache Tomcat: Information disclosure due to improper encoding in JsonAccessLogValve (CVE-2026-34483) tomcat: Apache Tomcat: Information disclosure via sensitive data in log files (CVE-2026-34487) tomcat: Apache Tomcat: Authentication bypass via client certificate misconfiguration (CVE-2026-34500) 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

Affected Software

1 affected component
Red Hat JBoss Enterprise Web Server

Remediation

Event History

May 26, 2026
Advisory Published
via Red Hat·12:51 PM
Data Sourced
via Red Hat·12:51 PM
DescriptionSeverityAffected Software
Jun 2, 2026
Advisory Published
via Red Hat·01:09 PM
Data Sourced
via Red Hat·01:09 PM
Remedy
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Frequently Asked Questions

1

What is the severity of RHSA-2026:20406?

The severity of RHSA-2026:20406 is high, rated at 7.

2

How do I fix RHSA-2026:20406?

To fix RHSA-2026:20406, you need to back up your existing Red Hat JBoss Web Server installation and apply the update available in the References section.

3

What components are affected by the RHSA-2026:20406 vulnerability?

The RHSA-2026:20406 vulnerability affects the Red Hat JBoss Web Server 6.2.3 which includes the Apache Tomcat Servlet container and JBoss HTTP Connector.

4

Is it safe to update Red Hat JBoss Web Server with RHSA-2026:20406?

Yes, it is safe to update Red Hat JBoss Web Server as long as you back up your installation and follow the recommended update procedures.

5

When was RHSA-2026:20406 published?

RHSA-2026:20406 was published on May 26, 2026.

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