CVE-2025-9784
CVE-2025-9784 · Undertow: undertow madeyoureset http/2 ddos vulnerability
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS).
CVSS 7.5 · High · EPSS 2.3% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
red hat build of apache camel 4.14.2 for spring boot 3.5.8
No fix published
red hat jboss enterprise application platform 7.1 eus for rhel 7
- Versions
- ≥ 0:1.4.18-21.SP19_redhat_00001.1.ep7.el7: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 7.3 eus for rhel 7
- Versions
- ≥ 0:2.0.41-8.SP9_redhat_00001.1.el7eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 7.4.24
- Versions
- ≥ 2.2.39.Final-redhat-00001: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 7.4 els on rhel 7
- Versions
- ≥ 0:2.2.39-1.Final_redhat_00001.1.el7eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 7.4 els on rhel 7
- Versions
- ≥ 0:7.4.24-4.GA_redhat_00002.1.el7eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 7.4 els on rhel 8
- Versions
- ≥ 0:2.2.39-1.Final_redhat_00001.1.el8eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 7.4 els on rhel 8
- Versions
- ≥ 0:7.4.24-4.GA_redhat_00002.1.el8eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 7.4 els on rhel 9
- Versions
- ≥ 0:2.2.39-1.Final_redhat_00001.1.el9eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 7.4 els on rhel 9
- Versions
- ≥ 0:7.4.24-4.GA_redhat_00002.1.el9eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.0
No fix published
red hat jboss enterprise application platform 8.0 for rhel 8
- Versions
- ≥ 0:1.83.0-1.redhat_00001.1.el8eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.0 for rhel 8
- Versions
- ≥ 0:33.0.0-2.jre_redhat_00003.1.el8eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.0 for rhel 8
- Versions
- ≥ 0:4.0.6-1.redhat_00001.1.el8eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.0 for rhel 8
- Versions
- ≥ 0:1.0.0-3.redhat_00009.1.el8eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.0 for rhel 8
- Versions
- ≥ 0:2.0.2-1.Final_redhat_00001.1.el8eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.0 for rhel 8
- Versions
- ≥ 0:2.3.23-1.SP3_redhat_00001.1.el8eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.0 for rhel 9
- Versions
- ≥ 0:1.83.0-1.redhat_00001.1.el9eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.0 for rhel 9
- Versions
- ≥ 0:33.0.0-2.jre_redhat_00003.1.el9eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.0 for rhel 9
- Versions
- ≥ 0:4.0.6-1.redhat_00001.1.el9eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.0 for rhel 9
- Versions
- ≥ 0:1.0.0-3.redhat_00009.1.el9eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.0 for rhel 9
- Versions
- ≥ 0:2.0.2-1.Final_redhat_00001.1.el9eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.0 for rhel 9
- Versions
- ≥ 0:2.3.23-1.SP3_redhat_00001.1.el9eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.1.3
- Versions
- ≥ 2.3.20.SP4-redhat-00001: Not affected (rpm)
No fix published
Original sources
- https://access.redhat.com/errata/RHSA-2025:23143
- https://access.redhat.com/errata/RHSA-2026:0383
- https://access.redhat.com/errata/RHSA-2026:0384
- https://access.redhat.com/errata/RHSA-2026:0386
- https://access.redhat.com/errata/RHSA-2026:33371
- https://access.redhat.com/errata/RHSA-2026:33372
- https://access.redhat.com/errata/RHSA-2026:3889
- https://access.redhat.com/errata/RHSA-2026:3891
- https://access.redhat.com/errata/RHSA-2026:3892
- https://access.redhat.com/errata/RHSA-2026:4915
- https://access.redhat.com/errata/RHSA-2026:4916
- https://access.redhat.com/errata/RHSA-2026:4917
- https://access.redhat.com/errata/RHSA-2026:4924
- https://access.redhat.com/errata/RHSA-2026:76128
- https://access.redhat.com/errata/RHSA-2026:76129
- https://access.redhat.com/errata/RHSA-2026:76130
- https://access.redhat.com/errata/RHSA-2026:76132
- https://access.redhat.com/errata/RHSA-2026:76134
- https://access.redhat.com/security/cve/CVE-2025-9784
- https://bugzilla.redhat.com/show_bug.cgi?id=2392306
- https://github.com/undertow-io/undertow/pull/1778
- https://github.com/undertow-io/undertow/releases/tag/2.2.38.Final
- https://issues.redhat.com/browse/UNDERTOW-2598
- https://nvd.nist.gov/vuln/detail/CVE-2025-9784