Bug 2483135 (CVE-2026-15562) - CVE-2026-15562 jboss-remoting: jboss-remoting: integer overflow in MessageReader leads to pre-authentication denial of service
Summary: CVE-2026-15562 jboss-remoting: jboss-remoting: integer overflow in MessageRea...
Keywords:
Status: NEW
Alias: CVE-2026-15562
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-29 01:00 UTC by OSIDB Bzimport
Modified: 2026-09-22 15:36 UTC (History)
21 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:53644 0 None None None 2026-08-11 16:37:44 UTC
Red Hat Product Errata RHSA-2026:53645 0 None None None 2026-09-17 17:49:21 UTC
Red Hat Product Errata RHSA-2026:53646 0 None None None 2026-09-17 17:47:39 UTC
Red Hat Product Errata RHSA-2026:53806 0 None None None 2026-08-11 17:42:34 UTC
Red Hat Product Errata RHSA-2026:70228 0 None None None 2026-09-22 12:56:25 UTC
Red Hat Product Errata RHSA-2026:70229 0 None None None 2026-09-22 13:00:58 UTC
Red Hat Product Errata RHSA-2026:70230 0 None None None 2026-09-22 12:58:54 UTC
Red Hat Product Errata RHSA-2026:70277 0 None None None 2026-09-22 15:36:00 UTC

Description OSIDB Bzimport 2026-05-29 01:00:21 UTC 
original reporting: https://docs.google.com/document/d/1Rf4NtLudECimDNy8F9clUblm6Avx8_yF/edit

DoS — jboss-remoting MessageReader signed-length size+4 overflow → pre-auth OOME spin (8 bytes) (JBoss EAP)

A remote unauthenticated attacker who can reach :8080 (or :9990, or :4447) and complete an Upgrade: jboss-remoting handshake can, with 8 bytes, wedge one XNIO IO thread in a full-GC OOME spin that degrades every HTTP/EJB/JMS request server-wide by ~200×, floods server.
findings/jboss-eap_75.md
Comment 1 errata-xmlrpc 2026-08-11 16:37:42 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Via RHSA-2026:53644 https://access.redhat.com/errata/RHSA-2026:53644
Comment 2 errata-xmlrpc 2026-08-11 17:42:32 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.4.25

Via RHSA-2026:53806 https://access.redhat.com/errata/RHSA-2026:53806
Comment 3 Jon Orris 2026-09-17 17:47:37 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9

Via RHSA-2026:53646 https://access.redhat.com/errata/RHSA-2026:53646
Comment 4 Jon Orris 2026-09-17 17:49:19 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8

Via RHSA-2026:53645 https://access.redhat.com/errata/RHSA-2026:53645
Comment 5 Jon Orris 2026-09-22 12:56:23 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

Via RHSA-2026:70228 https://access.redhat.com/errata/RHSA-2026:70228
Comment 6 Jon Orris 2026-09-22 12:58:52 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10

Via RHSA-2026:70230 https://access.redhat.com/errata/RHSA-2026:70230
Comment 7 Jon Orris 2026-09-22 13:00:56 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

Via RHSA-2026:70229 https://access.redhat.com/errata/RHSA-2026:70229
Comment 8 Jon Orris 2026-09-22 15:35:58 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1

Via RHSA-2026:70277 https://access.redhat.com/errata/RHSA-2026:70277
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