Bug 2392306 (CVE-2025-9784) - CVE-2025-9784 undertow: Undertow MadeYouReset HTTP/2 DDoS Vulnerability
Summary: CVE-2025-9784 undertow: Undertow MadeYouReset HTTP/2 DDoS Vulnerability
Keywords:
Status: NEW
Alias: CVE-2025-9784
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: 2392309 2392308
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-09-01 06:34 UTC by OSIDB Bzimport
Modified: 2026-01-08 16:55 UTC (History)
47 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-2025:23143 0 None None None 2025-12-11 20:15:40 UTC
Red Hat Product Errata RHSA-2026:0383 0 None None None 2026-01-08 16:54:54 UTC
Red Hat Product Errata RHSA-2026:0384 0 None None None 2026-01-08 16:55:19 UTC
Red Hat Product Errata RHSA-2026:0386 0 None None None 2026-01-08 16:53:59 UTC

Description OSIDB Bzimport 2025-09-01 06:34:39 UTC 
HTTP/2 (including DNS over HTTPS) contains a design flaw and is vulnerable to "MadeYouReset" DoS attack through HTTP/2 control frames
Comment 1 errata-xmlrpc 2025-12-11 20:15:36 UTC 
This issue has been addressed in the following products:

  Red Hat build of Apache Camel 4.14.2 for Spring Boot 3.5.8

Via RHSA-2025:23143 https://access.redhat.com/errata/RHSA-2025:23143
Comment 2 errata-xmlrpc 2026-01-08 16:53:55 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1

Via RHSA-2026:0386 https://access.redhat.com/errata/RHSA-2026:0386
Comment 3 errata-xmlrpc 2026-01-08 16:54:49 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

Via RHSA-2026:0383 https://access.redhat.com/errata/RHSA-2026:0383
Comment 4 errata-xmlrpc 2026-01-08 16:55:14 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

Via RHSA-2026:0384 https://access.redhat.com/errata/RHSA-2026:0384
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