RHEL 7 : Red Hat JBoss Enterprise Application Platform 7.1.16 (RHSA-2026:73976)

high Nessus Plugin ID 351867

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Synopsis

The remote Red Hat host is missing one or more security updates for Red Hat JBoss Enterprise Application Platform 7.1.16.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:73976 advisory.

Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.1.16 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.1.15, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.1.16 Release Notes for information about the most significant bug fixes and enhancements included in this release.

Security Fix(es):

* mchange-commons-java: mchange-commons-java: Arbitrary code execution via JNDI dereferencing of crafted objects [eap-7.1.z] (CVE-2026-27727)

* com.mchange/c3p0: c3p0: Arbitrary Code Execution via deserialization of crafted objects [eap-7.1.z] (CVE-2026-27830)

* netty-codec: Netty: Denial of Service via excessive memory allocation in LZ4FrameDecoder [eap-7.1.z] (CVE-2026-42583)

* netty-handler-proxy: Netty: HTTP Header Injection via HttpProxyHandler Disabled Validation [eap-7.1.z] (CVE-2026-42578)

* netty-codec-http: Netty: HTTP Request Smuggling due to improper handling of conflicting HTTP/1.0 headers [eap-7.1.z] (CVE-2026-42581)

* netty-codec-http: Netty: Request smuggling via malformed Transfer-Encoding parsing [eap-7.1.z] (CVE-2026-42585)

* netty-codec-http: Netty: Incorrect HTTP response parsing leads to data confusion [eap-7.1.z] (CVE-2026-42584)

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 7.1.16 package based on the guidance in RHSA-2026:73976.

Plugin Details

Severity: High

ID: 351867

File Name: redhat-RHSA-2026-73976.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 9/30/2026

Updated: 9/30/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, 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: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-42581

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS v4

Risk Factor: High

Base Score: 8.9

Threat Score: 7.4

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2026-27830

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:eap7-hibernate-core, p-cpe:/a:redhat:enterprise_linux:eap7-hibernate-entitymanager, p-cpe:/a:redhat:enterprise_linux:eap7-hibernate-envers, p-cpe:/a:redhat:enterprise_linux:eap7-hibernate-infinispan, p-cpe:/a:redhat:enterprise_linux:eap7-hibernate-java8, p-cpe:/a:redhat:enterprise_linux:eap7-hibernate, p-cpe:/a:redhat:enterprise_linux:eap7-netty-all, p-cpe:/a:redhat:enterprise_linux:eap7-netty, p-cpe:/a:redhat:enterprise_linux:eap7-wildfly-modules, p-cpe:/a:redhat:enterprise_linux:eap7-wildfly

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: 9/30/2026

Vulnerability Publication Date: 2/25/2026

Reference Information

CVE: CVE-2026-27727, CVE-2026-27830, CVE-2026-42578, CVE-2026-42581, CVE-2026-42583, CVE-2026-42584, CVE-2026-42585

CWE: 444, 502, 770, 93

RHSA: 2026:73976

Detections

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