RHSA-2026:49700: Important: Red Hat JBoss Enterprise Application Platform 8.1.7 security update
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
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redhat/eap8-eap-product-conf-parentto a version that resolves this vulnerability.Fixed in 801.7.1-1.GA_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-nettyto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-transport-native-epollto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-wildflyto a version that resolves this vulnerability.Fixed in 8.1.7.1-1.GA_redhat_00004.1.el10ea - Upgrade
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redhat/eap8-eap-product-conf-wildfly-ee-feature-packto a version that resolves this vulnerability.Fixed in 801.7.1-1.GA_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-bufferto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-codecto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-codec-dnsto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-codec-httpto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-codec-socksto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-commonto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-handlerto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-handler-proxyto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-resolverto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-resolver-dnsto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-transportto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-transport-classes-epollto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-transport-native-epoll-debuginfoto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-netty-transport-native-unix-commonto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el10ea - Upgrade
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redhat/eap8-wildfly-java-jdk21to a version that resolves this vulnerability.Fixed in 8.1.7.1-1.GA_redhat_00004.1.el10ea - Upgrade
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redhat/eap8-wildfly-modulesto a version that resolves this vulnerability.Fixed in 8.1.7.1-1.GA_redhat_00004.1.el10ea - Upgrade
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redhat/eap8-eap-product-conf-parentto a version that resolves this vulnerability.Fixed in 801.7.1-1.GA_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-jose4jto a version that resolves this vulnerability.Fixed in 0.9.6-2.redhat_00002.1.el9ea - Upgrade
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redhat/eap8-nettyto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-netty-transport-native-epollto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-wildflyto a version that resolves this vulnerability.Fixed in 8.1.7.1-1.GA_redhat_00004.1.el9ea - Upgrade
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redhat/eap8-eap-product-conf-wildfly-ee-feature-packto a version that resolves this vulnerability.Fixed in 801.7.1-1.GA_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-netty-bufferto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-netty-codecto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-netty-codec-dnsto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-netty-codec-httpto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-netty-codec-socksto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-netty-commonto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
Upgrade
redhat/eap8-netty-handlerto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
Upgrade
redhat/eap8-netty-handler-proxyto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-netty-resolverto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-netty-resolver-dnsto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-netty-transportto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
Upgrade
redhat/eap8-netty-transport-classes-epollto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
Upgrade
redhat/eap8-netty-transport-native-epoll-debuginfoto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-netty-transport-native-unix-commonto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el9ea - Upgrade
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redhat/eap8-wildfly-java-jdk17to a version that resolves this vulnerability.Fixed in 8.1.7.1-1.GA_redhat_00004.1.el9ea - Upgrade
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redhat/eap8-wildfly-java-jdk21to a version that resolves this vulnerability.Fixed in 8.1.7.1-1.GA_redhat_00004.1.el9ea - Upgrade
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redhat/eap8-wildfly-modulesto a version that resolves this vulnerability.Fixed in 8.1.7.1-1.GA_redhat_00004.1.el9ea - Upgrade
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redhat/eap8-eap-product-conf-parentto a version that resolves this vulnerability.Fixed in 801.7.1-1.GA_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap8-jose4jto a version that resolves this vulnerability.Fixed in 0.9.6-2.redhat_00002.1.el8ea - Upgrade
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redhat/eap8-nettyto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-netty-transport-native-epollto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-wildflyto a version that resolves this vulnerability.Fixed in 8.1.7.1-1.GA_redhat_00004.1.el8ea - Upgrade
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redhat/eap8-eap-product-conf-wildfly-ee-feature-packto a version that resolves this vulnerability.Fixed in 801.7.1-1.GA_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-netty-bufferto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-netty-codecto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-netty-codec-dnsto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-netty-codec-httpto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap8-netty-codec-socksto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap8-netty-commonto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
Upgrade
redhat/eap8-netty-handlerto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-netty-handler-proxyto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-netty-resolverto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-netty-resolver-dnsto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-netty-transportto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-netty-transport-classes-epollto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-netty-transport-native-epoll-debuginfoto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-netty-transport-native-unix-commonto a version that resolves this vulnerability.Fixed in 4.1.135-1.Final_redhat_00001.1.el8ea - Upgrade
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redhat/eap8-wildfly-java-jdk17to a version that resolves this vulnerability.Fixed in 8.1.7.1-1.GA_redhat_00004.1.el8ea - Upgrade
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redhat/eap8-wildfly-java-jdk21to a version that resolves this vulnerability.Fixed in 8.1.7.1-1.GA_redhat_00004.1.el8ea - Upgrade
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redhat/eap8-wildfly-modulesto a version that resolves this vulnerability.Fixed in 8.1.7.1-1.GA_redhat_00004.1.el8ea - Upgrade
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Red Hat JBoss Enterprise Application Platform 8.1to a version that resolves this vulnerability.Fixed in 8.1.7 - Compensating control
Before applying the update, ensure all previously released errata relevant to your system have been applied.
- Operational
Back up your existing Red Hat JBoss Enterprise Application Platform 8.1.7 installation, including all applications, configuration files, databases and database settings.
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:49700?
The severity of RHSA-2026:49700 is rated as important.
How do I fix RHSA-2026:49700?
To fix RHSA-2026:49700, apply the latest security update for Red Hat JBoss Enterprise Application Platform 8.1.7.
What software is affected by RHSA-2026:49700?
The affected software includes various Red Hat JBoss Enterprise Application Platform 8.1 components, such as redhat/eap8-wildfly and redhat/eap8-netty.
When was RHSA-2026:49700 published?
RHSA-2026:49700 was published on August 3, 2026.
What is Red Hat JBoss Enterprise Application Platform?
Red Hat JBoss Enterprise Application Platform is a platform for Java applications based on the WildFly application runtime.