RHSA-2026:96228: Important: Red Hat JBoss Web Server 6.2.6 release and security update

Published Nov 9, 2026
·
Updated

Important: Red Hat JBoss Web Server 6.2.6 release and security update

Other sources

Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache Tomcat Servlet container, JBoss HTTP Connector (modcluster), the PicketLink Vault extension for Apache Tomcat, and the Tomcat Native library.This release of Red Hat JBoss Web Server 6.2.6 serves as a replacement for Red Hat JBoss Web Server 6.2.5. This release includes bug fixes, enhancements and component upgrades, which are documented in the Release Notes that are linked to in the References section.Security Fix(es): modcluster-core: modcluster Advertise Listener: unauthenticated DoS via crafted multicast datagram (CVE-2026-76166) jws6-tomcat-native: Apache Tomcat Native: Client certificate verification requirements can be down-graded via race condition (CVE-2026-86247) jws6-tomcat: Apache Tomcat: Denial of Service via AJP request (CVE-2026-78383) jws6-tomcat: Apache Tomcat: Denial of Service via busy wait during WebSocket close (CVE-2026-77791) jws6-tomcat: Apache Tomcat: HTTP/2 request smuggling due to header mix-up (CVE-2026-86350) jws6-tomcat: Apache Tomcat: Authentication Bypass in WebSocket Endpoints (CVE-2026-76183) jws6-tomcat: Apache Tomcat: Denial of Service due to lost asynchronous WebSocket write timeouts (CVE-2026-79677) jws6-tomcat: Apache Tomcat: TLS implementations ignore Certificate Revocation Lists (CVE-2026-73581) jws6-tomcat: Apache Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled (CVE-2026-86248) jws6-tomcat-native: Apache Tomcat Native: Denial of Service via buffer over-read during TLS handshake (CVE-2026-86243) jws6-tomcat-native: Apache Tomcat Native: Weakened TLS connection security via insecure default configuration (CVE-2026-86246) 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

37 affected componentsFixes available
redhat/jws6-tomcat<10.1.49-18.redhat_00018.1.el10
10.1.49-18.redhat_00018.1.el10
redhat/jws6-tomcat-native<1.3.6-2.redhat_2.el10
1.3.6-2.redhat_2.el10
redhat/jws6-tomcat-admin-webapps<10.1.49-18.redhat_00018.1.el10
10.1.49-18.redhat_00018.1.el10
redhat/jws6-tomcat-docs-webapp<10.1.49-18.redhat_00018.1.el10
10.1.49-18.redhat_00018.1.el10
redhat/jws6-tomcat-el<5.0-api-10.1.49-18.redhat_00018.1.el10
5.0-api-10.1.49-18.redhat_00018.1.el10
redhat/jws6-tomcat-javadoc<10.1.49-18.redhat_00018.1.el10
10.1.49-18.redhat_00018.1.el10
redhat/jws6-tomcat-jsp<3.1-api-10.1.49-18.redhat_00018.1.el10
3.1-api-10.1.49-18.redhat_00018.1.el10
redhat/jws6-tomcat-lib<10.1.49-18.redhat_00018.1.el10
10.1.49-18.redhat_00018.1.el10
redhat/jws6-tomcat-native-debuginfo<1.3.6-2.redhat_2.el10
1.3.6-2.redhat_2.el10
redhat/jws6-tomcat-selinux<10.1.49-18.redhat_00018.1.el10
10.1.49-18.redhat_00018.1.el10
redhat/jws6-tomcat-servlet<6.0-api-10.1.49-18.redhat_00018.1.el10
6.0-api-10.1.49-18.redhat_00018.1.el10
redhat/jws6-tomcat-webapps<10.1.49-18.redhat_00018.1.el10
10.1.49-18.redhat_00018.1.el10
redhat/jws6-tomcat<10.1.49-18.redhat_00018.1.el9
10.1.49-18.redhat_00018.1.el9
redhat/jws6-tomcat-native<1.3.6-2.redhat_2.el9
1.3.6-2.redhat_2.el9
redhat/jws6-tomcat-admin-webapps<10.1.49-18.redhat_00018.1.el9
10.1.49-18.redhat_00018.1.el9
redhat/jws6-tomcat-docs-webapp<10.1.49-18.redhat_00018.1.el9
10.1.49-18.redhat_00018.1.el9
redhat/jws6-tomcat-el<5.0-api-10.1.49-18.redhat_00018.1.el9
5.0-api-10.1.49-18.redhat_00018.1.el9
redhat/jws6-tomcat-javadoc<10.1.49-18.redhat_00018.1.el9
10.1.49-18.redhat_00018.1.el9
redhat/jws6-tomcat-jsp<3.1-api-10.1.49-18.redhat_00018.1.el9
3.1-api-10.1.49-18.redhat_00018.1.el9
redhat/jws6-tomcat-lib<10.1.49-18.redhat_00018.1.el9
10.1.49-18.redhat_00018.1.el9
redhat/jws6-tomcat-native-debuginfo<1.3.6-2.redhat_2.el9
1.3.6-2.redhat_2.el9
redhat/jws6-tomcat-selinux<10.1.49-18.redhat_00018.1.el9
10.1.49-18.redhat_00018.1.el9
redhat/jws6-tomcat-servlet<6.0-api-10.1.49-18.redhat_00018.1.el9
6.0-api-10.1.49-18.redhat_00018.1.el9
redhat/jws6-tomcat-webapps<10.1.49-18.redhat_00018.1.el9
10.1.49-18.redhat_00018.1.el9
redhat/jws6-tomcat<10.1.49-18.redhat_00018.1.el8
10.1.49-18.redhat_00018.1.el8
redhat/jws6-tomcat-native<1.3.6-2.redhat_2.el8
1.3.6-2.redhat_2.el8
redhat/jws6-tomcat-admin-webapps<10.1.49-18.redhat_00018.1.el8
10.1.49-18.redhat_00018.1.el8
redhat/jws6-tomcat-docs-webapp<10.1.49-18.redhat_00018.1.el8
10.1.49-18.redhat_00018.1.el8
redhat/jws6-tomcat-el<5.0-api-10.1.49-18.redhat_00018.1.el8
5.0-api-10.1.49-18.redhat_00018.1.el8
redhat/jws6-tomcat-javadoc<10.1.49-18.redhat_00018.1.el8
10.1.49-18.redhat_00018.1.el8
redhat/jws6-tomcat-jsp<3.1-api-10.1.49-18.redhat_00018.1.el8
3.1-api-10.1.49-18.redhat_00018.1.el8
redhat/jws6-tomcat-lib<10.1.49-18.redhat_00018.1.el8
10.1.49-18.redhat_00018.1.el8
redhat/jws6-tomcat-native-debuginfo<1.3.6-2.redhat_2.el8
1.3.6-2.redhat_2.el8
redhat/jws6-tomcat-selinux<10.1.49-18.redhat_00018.1.el8
10.1.49-18.redhat_00018.1.el8
redhat/jws6-tomcat-servlet<6.0-api-10.1.49-18.redhat_00018.1.el8
6.0-api-10.1.49-18.redhat_00018.1.el8
redhat/jws6-tomcat-webapps<10.1.49-18.redhat_00018.1.el8
10.1.49-18.redhat_00018.1.el8
Red Hat JBoss Enterprise Web Server

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/jws6-tomcat to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el10
  2. Upgrade

    Upgrade redhat/jws6-tomcat-native to a version that resolves this vulnerability.

    Fixed in 1.3.6-2.redhat_2.el10
  3. Upgrade

    Upgrade redhat/jws6-tomcat-admin-webapps to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el10
  4. Upgrade

    Upgrade redhat/jws6-tomcat-docs-webapp to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el10
  5. Upgrade

    Upgrade redhat/jws6-tomcat-el to a version that resolves this vulnerability.

    Fixed in 5.0-api-10.1.49-18.redhat_00018.1.el10
  6. Upgrade

    Upgrade redhat/jws6-tomcat-javadoc to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el10
  7. Upgrade

    Upgrade redhat/jws6-tomcat-jsp to a version that resolves this vulnerability.

    Fixed in 3.1-api-10.1.49-18.redhat_00018.1.el10
  8. Upgrade

    Upgrade redhat/jws6-tomcat-lib to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el10
  9. Upgrade

    Upgrade redhat/jws6-tomcat-native-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.3.6-2.redhat_2.el10
  10. Upgrade

    Upgrade redhat/jws6-tomcat-selinux to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el10
  11. Upgrade

    Upgrade redhat/jws6-tomcat-servlet to a version that resolves this vulnerability.

    Fixed in 6.0-api-10.1.49-18.redhat_00018.1.el10
  12. Upgrade

    Upgrade redhat/jws6-tomcat-webapps to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el10
  13. Upgrade

    Upgrade redhat/jws6-tomcat to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el9
  14. Upgrade

    Upgrade redhat/jws6-tomcat-native to a version that resolves this vulnerability.

    Fixed in 1.3.6-2.redhat_2.el9
  15. Upgrade

    Upgrade redhat/jws6-tomcat-admin-webapps to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el9
  16. Upgrade

    Upgrade redhat/jws6-tomcat-docs-webapp to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el9
  17. Upgrade

    Upgrade redhat/jws6-tomcat-el to a version that resolves this vulnerability.

    Fixed in 5.0-api-10.1.49-18.redhat_00018.1.el9
  18. Upgrade

    Upgrade redhat/jws6-tomcat-javadoc to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el9
  19. Upgrade

    Upgrade redhat/jws6-tomcat-jsp to a version that resolves this vulnerability.

    Fixed in 3.1-api-10.1.49-18.redhat_00018.1.el9
  20. Upgrade

    Upgrade redhat/jws6-tomcat-lib to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el9
  21. Upgrade

    Upgrade redhat/jws6-tomcat-native-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.3.6-2.redhat_2.el9
  22. Upgrade

    Upgrade redhat/jws6-tomcat-selinux to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el9
  23. Upgrade

    Upgrade redhat/jws6-tomcat-servlet to a version that resolves this vulnerability.

    Fixed in 6.0-api-10.1.49-18.redhat_00018.1.el9
  24. Upgrade

    Upgrade redhat/jws6-tomcat-webapps to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el9
  25. Upgrade

    Upgrade redhat/jws6-tomcat to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el8
  26. Upgrade

    Upgrade redhat/jws6-tomcat-native to a version that resolves this vulnerability.

    Fixed in 1.3.6-2.redhat_2.el8
  27. Upgrade

    Upgrade redhat/jws6-tomcat-admin-webapps to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el8
  28. Upgrade

    Upgrade redhat/jws6-tomcat-docs-webapp to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el8
  29. Upgrade

    Upgrade redhat/jws6-tomcat-el to a version that resolves this vulnerability.

    Fixed in 5.0-api-10.1.49-18.redhat_00018.1.el8
  30. Upgrade

    Upgrade redhat/jws6-tomcat-javadoc to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el8
  31. Upgrade

    Upgrade redhat/jws6-tomcat-jsp to a version that resolves this vulnerability.

    Fixed in 3.1-api-10.1.49-18.redhat_00018.1.el8
  32. Upgrade

    Upgrade redhat/jws6-tomcat-lib to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el8
  33. Upgrade

    Upgrade redhat/jws6-tomcat-native-debuginfo to a version that resolves this vulnerability.

    Fixed in 1.3.6-2.redhat_2.el8
  34. Upgrade

    Upgrade redhat/jws6-tomcat-selinux to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el8
  35. Upgrade

    Upgrade redhat/jws6-tomcat-servlet to a version that resolves this vulnerability.

    Fixed in 6.0-api-10.1.49-18.redhat_00018.1.el8
  36. Upgrade

    Upgrade redhat/jws6-tomcat-webapps to a version that resolves this vulnerability.

    Fixed in 10.1.49-18.redhat_00018.1.el8
  37. Upgrade

    Upgrade Red Hat JBoss Web Server to a version that resolves this vulnerability.

    Fixed in 6.2.6

Event History

Nov 9, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·05:27 PM
Data Sourced
via Red Hat·05:27 PM
Severity

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