RHSA-2026:36343: Moderate: Red Hat JBoss Enterprise Application Platform 8.1.7 security update
Moderate: Red Hat JBoss Enterprise Application Platform 8.1.7 security update
Other sources
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 Enterprise Application Platform 8.1.7 serves as a replacement for Red Hat JBoss Enterprise Application Platform 8.1.6, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 8.1.7 Release Notes for information about the most significant bug fixes and enhancements included in this release.Security Fix(es): io.undertow.jastow-jastow: Jastow Cross-Site Scripting attack due to unsanitized URI (CVE-2025-12799) 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
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/eap8-apache-cxfto a version that resolves this vulnerability.Fixed in 4.0.10-3.redhat_00001.1.el9ea - Upgrade
Upgrade
redhat/eap8-artemis-wildfly-integrationto a version that resolves this vulnerability.Fixed in 2.0.4-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-eap-product-conf-parentto a version that resolves this vulnerability.Fixed in 801.7.0-1.GA_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-hibernateto a version that resolves this vulnerability.Fixed in 6.6.50-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-jbossws-cxfto a version that resolves this vulnerability.Fixed in 7.3.8-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-jgroupsto a version that resolves this vulnerability.Fixed in 5.3.23-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-undertowto a version that resolves this vulnerability.Fixed in 2.3.24-4.SP3_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-undertow-jastowto a version that resolves this vulnerability.Fixed in 2.2.9-1.SP1_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-wildflyto a version that resolves this vulnerability.Fixed in 8.1.7-4.GA_redhat_00003.1.el9ea - Upgrade
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redhat/eap8-wildfly-elytronto a version that resolves this vulnerability.Fixed in 2.6.9-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-wildfly-javadocsto a version that resolves this vulnerability.Fixed in 8.1.1-11.GA_redhat_00019.1.el9ea - Upgrade
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redhat/eap8-apache-cxf-rtto a version that resolves this vulnerability.Fixed in 4.0.10-3.redhat_00001.1.el9ea - Upgrade
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redhat/eap8-apache-cxf-servicesto a version that resolves this vulnerability.Fixed in 4.0.10-3.redhat_00001.1.el9ea - Upgrade
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redhat/eap8-apache-cxf-toolsto a version that resolves this vulnerability.Fixed in 4.0.10-3.redhat_00001.1.el9ea - Upgrade
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redhat/eap8-eap-product-conf-wildfly-ee-feature-packto a version that resolves this vulnerability.Fixed in 801.7.0-1.GA_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-hibernate-coreto a version that resolves this vulnerability.Fixed in 6.6.50-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-hibernate-enversto a version that resolves this vulnerability.Fixed in 6.6.50-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-wildfly-elytron-toolto a version that resolves this vulnerability.Fixed in 2.6.9-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-wildfly-java-jdk17to a version that resolves this vulnerability.Fixed in 8.1.7-4.GA_redhat_00003.1.el9ea - Upgrade
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redhat/eap8-wildfly-java-jdk21to a version that resolves this vulnerability.Fixed in 8.1.7-4.GA_redhat_00003.1.el9ea - Upgrade
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redhat/eap8-wildfly-modulesto a version that resolves this vulnerability.Fixed in 8.1.7-4.GA_redhat_00003.1.el9ea - Upgrade
Upgrade
Red Hat JBoss Enterprise Application Platform 8.1to a version that resolves this vulnerability.Fixed in 8.1.7 - Compensating control
If you cannot apply the update immediately, mitigate exposure to CVE-2025-12799 by reviewing and limiting public access paths that could trigger the io.undertow.jastow-jastow Jastow Cross-Site Scripting attack via unsanitized URI (as described for this security fix in the 8.1.7 update).
- Operational
Back up your existing installation, including all applications, configuration files, databases and database settings, before applying the JBoss EAP 8.1.7 security update.
- Operational
Before applying the JBoss EAP 8.1.7 update, ensure all previously released errata relevant to your system have been applied.
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:36343?
The severity of RHSA-2026:36343 is classified as medium.
What does the RHSA-2026:36343 security update address?
RHSA-2026:36343 addresses vulnerabilities in Red Hat JBoss Enterprise Application Platform 8.1.7.
How do I fix RHSA-2026:36343?
To fix RHSA-2026:36343, update your Red Hat JBoss Enterprise Application Platform to version 8.1.7 or apply the necessary patches.
Which software is affected by RHSA-2026:36343?
The affected software includes Red Hat JBoss Enterprise Application Platform and related components such as Apache CXF and Hibernate.
When was RHSA-2026:36343 published?
RHSA-2026:36343 was published on July 7, 2026.