Bug 2511978 (CVE-2026-64958) - CVE-2026-64958 org.apache.cxf/cxf: Apache CXF: Denial of service via many attachment headers
Summary: CVE-2026-64958 org.apache.cxf/cxf: Apache CXF: Denial of service via many att...
Keywords:
Status: NEW
Alias: CVE-2026-64958
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-06 11:11 UTC by OSIDB Bzimport
Modified: 2026-11-06 15:32 UTC (History)
45 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-2026:92056 0 None None None 2026-10-28 17:52:47 UTC
Red Hat Product Errata RHSA-2026:92057 0 None None None 2026-10-28 17:52:21 UTC
Red Hat Product Errata RHSA-2026:92059 0 None None None 2026-10-28 17:51:34 UTC
Red Hat Product Errata RHSA-2026:95887 0 None None None 2026-11-06 15:32:51 UTC

Description OSIDB Bzimport 2026-08-06 11:11:15 UTC 
An incomplete fix for CVE-2026-50645 means that it is still possible to perform a denial of service attack on Apache CXF by sending a message with many attachment headers. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.
Comment 1 Jon Orris 2026-10-28 17:51:31 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10

Via RHSA-2026:92059 https://access.redhat.com/errata/RHSA-2026:92059
Comment 2 Jon Orris 2026-10-28 17:52:18 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

Via RHSA-2026:92057 https://access.redhat.com/errata/RHSA-2026:92057
Comment 3 Jon Orris 2026-10-28 17:52:44 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

Via RHSA-2026:92056 https://access.redhat.com/errata/RHSA-2026:92056
Comment 4 Jon Orris 2026-11-06 15:32:48 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1

Via RHSA-2026:95887 https://access.redhat.com/errata/RHSA-2026:95887
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