RHEL 10 / 8 / 9 : Red Hat JBoss Web Server 6.2.3 (RHSA-2026:20405)

high Nessus Plugin ID 316897

Synopsis

The remote Red Hat host is missing one or more security updates for Red Hat JBoss Web Server 6.2.3.

Description

The remote Redhat Enterprise Linux 10 / 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:20405 advisory.

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 (mod_cluster), 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 CLIENT_CERT 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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL Red Hat JBoss Web Server 6.2.3 package based on the guidance in RHSA-2026:20405.

Plugin Details

Severity: High

ID: 316897

File Name: redhat-RHSA-2026-20405.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 5/27/2026

Updated: 5/27/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-29145

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 8.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-29146

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:jws6-tomcat, p-cpe:/a:redhat:enterprise_linux:jws6-tomcat-admin-webapps, p-cpe:/a:redhat:enterprise_linux:jws6-tomcat-docs-webapp, p-cpe:/a:redhat:enterprise_linux:jws6-tomcat-el-5.0-api, p-cpe:/a:redhat:enterprise_linux:jws6-tomcat-javadoc, p-cpe:/a:redhat:enterprise_linux:jws6-tomcat-jsp-3.1-api, p-cpe:/a:redhat:enterprise_linux:jws6-tomcat-lib, p-cpe:/a:redhat:enterprise_linux:jws6-tomcat-selinux, p-cpe:/a:redhat:enterprise_linux:jws6-tomcat-servlet-6.0-api, p-cpe:/a:redhat:enterprise_linux:jws6-tomcat-webapps, cpe:/o:redhat:enterprise_linux:10

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/26/2026

Vulnerability Publication Date: 3/20/2026

Reference Information

CVE: CVE-2026-24880, CVE-2026-25854, CVE-2026-29145, CVE-2026-29146, CVE-2026-34483, CVE-2026-34487, CVE-2026-34500

CWE: 1240, 303, 444, 538, 601, 838

RHSA: 2026:20405

Detections

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