RHSA-2026:49700HighCVSS 8.7

Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.1.7 security update

Published
August 3, 2026
Last Modified
August 21, 2026

🔗 CVE IDs covered (5)

CVE-2026-47691 →CVE-2026-50010 →CVE-2026-44249 →CVE-2026-45416 →CVE-2026-45674 →

📋 Description

CVE-2026-44249 — netty-handler: netty-handler: IPv6 subnet rule bypass due to incorrect masking operation CVE-2026-45416 — netty-handler: Netty: Denial of Service due to eager buffer allocation in TLS handshake CVE-2026-45674 — netty-resolver-dns: Netty: Information disclosure and data manipulation due to improper CNAME record validation CVE-2026-47691 — io.netty/netty-resolver-dns: Netty has Insufficient Bailiwick Validation for NS Records CVE-2026-50010 — netty-handler: Netty: Improper trust manager handling leads to hostname verification bypass

🎯 Affected products84

  • Red Hat JBoss EAP 8.1 for RHEL 10
  • Red Hat JBoss EAP 8.1 for RHEL 8
  • Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-eap-product-conf-parent-0:801.7.1-1.GA_redhat_00001.1.el10eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 10
  • eap8-eap-product-conf-parent-0:801.7.1-1.GA_redhat_00001.1.el10eap.src as a component of Red Hat JBoss EAP 8.1 for RHEL 10
  • eap8-eap-product-conf-parent-0:801.7.1-1.GA_redhat_00001.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-eap-product-conf-parent-0:801.7.1-1.GA_redhat_00001.1.el8eap.src as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-eap-product-conf-parent-0:801.7.1-1.GA_redhat_00001.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-eap-product-conf-parent-0:801.7.1-1.GA_redhat_00001.1.el9eap.src as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-eap-product-conf-wildfly-ee-feature-pack-0:801.7.1-1.GA_redhat_00001.1.el10eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 10
  • eap8-eap-product-conf-wildfly-ee-feature-pack-0:801.7.1-1.GA_redhat_00001.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-eap-product-conf-wildfly-ee-feature-pack-0:801.7.1-1.GA_redhat_00001.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-jose4j-0:0.9.6-2.redhat_00002.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-jose4j-0:0.9.6-2.redhat_00002.1.el8eap.src as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-jose4j-0:0.9.6-2.redhat_00002.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-jose4j-0:0.9.6-2.redhat_00002.1.el9eap.src as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-netty-0:4.1.135-1.Final_redhat_00001.1.el10eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 10
  • eap8-netty-0:4.1.135-1.Final_redhat_00001.1.el10eap.src as a component of Red Hat JBoss EAP 8.1 for RHEL 10
  • eap8-netty-0:4.1.135-1.Final_redhat_00001.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-netty-0:4.1.135-1.Final_redhat_00001.1.el8eap.src as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-netty-0:4.1.135-1.Final_redhat_00001.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-netty-0:4.1.135-1.Final_redhat_00001.1.el9eap.src as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-netty-buffer-0:4.1.135-1.Final_redhat_00001.1.el10eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 10
  • eap8-netty-buffer-0:4.1.135-1.Final_redhat_00001.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-netty-buffer-0:4.1.135-1.Final_redhat_00001.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-netty-codec-0:4.1.135-1.Final_redhat_00001.1.el10eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 10
  • eap8-netty-codec-0:4.1.135-1.Final_redhat_00001.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • eap8-netty-codec-0:4.1.135-1.Final_redhat_00001.1.el9eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 9
  • eap8-netty-codec-dns-0:4.1.135-1.Final_redhat_00001.1.el10eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 10
  • eap8-netty-codec-dns-0:4.1.135-1.Final_redhat_00001.1.el8eap.noarch as a component of Red Hat JBoss EAP 8.1 for RHEL 8
  • +54 more not shown

✅ Remediation

Before applying the update, make sure all previously released errata relevant to your system have been applied. Also, back up your existing installation, including all applications, configuration files, databases and database settings. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: To mitigate this issue, configure applications utilizing Netty's `SslClientHelloHandler` to specify a non-zero value for the `maxClientHelloLength` parameter. This will enable the internal length validation, preventing the eager allocation of large memory buffers when processing crafted TLS ClientHello messages. Refer to your specific application's documentation for details on configuring Netty's TLS handler. A restart of the affected application or service is required for the configuration changes to take effect.

🔗 References (13)