RHEL 10 / 8 / 9 : Red Hat JBoss Enterprise Application Platform 8.1.7 (RHSA-2026:49700)

critical Nessus Plugin ID 331717

Synopsis

The remote Red Hat host is missing one or more security updates for Red Hat JBoss Enterprise Application Platform 8.1.7.

Description

The remote Redhat Enterprise Linux 10 / 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:49700 advisory.

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):

* netty-handler: Netty: Denial of Service due to eager buffer allocation in TLS handshake (CVE-2026-45416)

* netty-resolver-dns: Netty: Information disclosure and data manipulation due to improper CNAME record validation (CVE-2026-45674)

* netty-handler: Netty: Improper trust manager handling leads to hostname verification bypass (CVE-2026-50010)

* netty-resolver-dns: Netty has Insufficient Bailiwick Validation for NS Records (CVE-2026-47691)

* netty-handler: netty-handler: IPv6 subnet rule bypass due to incorrect masking operation (CVE-2026-44249)

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 Enterprise Application Platform 8.1.7 package based on the guidance in RHSA-2026:49700.

Plugin Details

Severity: Critical

ID: 331717

File Name: redhat-RHSA-2026-49700.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 8/3/2026

Updated: 8/3/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.03

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

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

CVSS Score Source: CVE-2026-47691

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:eap8-eap-product-conf-parent, p-cpe:/a:redhat:enterprise_linux:eap8-eap-product-conf-wildfly-ee-feature-pack, p-cpe:/a:redhat:enterprise_linux:eap8-jose4j, p-cpe:/a:redhat:enterprise_linux:eap8-netty-buffer, p-cpe:/a:redhat:enterprise_linux:eap8-netty-codec-dns, p-cpe:/a:redhat:enterprise_linux:eap8-netty-codec-http, p-cpe:/a:redhat:enterprise_linux:eap8-netty-codec-socks, p-cpe:/a:redhat:enterprise_linux:eap8-netty-codec, p-cpe:/a:redhat:enterprise_linux:eap8-netty-common, p-cpe:/a:redhat:enterprise_linux:eap8-netty-handler-proxy, p-cpe:/a:redhat:enterprise_linux:eap8-netty-handler, p-cpe:/a:redhat:enterprise_linux:eap8-netty-resolver-dns, p-cpe:/a:redhat:enterprise_linux:eap8-netty-resolver, p-cpe:/a:redhat:enterprise_linux:eap8-netty-transport-classes-epoll, p-cpe:/a:redhat:enterprise_linux:eap8-netty-transport-native-epoll, p-cpe:/a:redhat:enterprise_linux:eap8-netty-transport-native-unix-common, p-cpe:/a:redhat:enterprise_linux:eap8-netty-transport, p-cpe:/a:redhat:enterprise_linux:eap8-netty, p-cpe:/a:redhat:enterprise_linux:eap8-wildfly-java-jdk17, p-cpe:/a:redhat:enterprise_linux:eap8-wildfly-java-jdk21, p-cpe:/a:redhat:enterprise_linux:eap8-wildfly-modules, p-cpe:/a:redhat:enterprise_linux:eap8-wildfly

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/3/2026

Vulnerability Publication Date: 6/8/2026

Reference Information

CVE: CVE-2026-44249, CVE-2026-45416, CVE-2026-45674, CVE-2026-47691, CVE-2026-50010

CWE: 1287, 346, 347, 770

RHSA: 2026:49700

Detections

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