7.5
High
CVE-2025-9784 Undertow: undertow madeyoureset http/2 ddos vulnerability
Description
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 3.1 detail
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- Interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat build of Apache Camel 4.14.2 for Spring Boot 3.5.8 | Versions not published | |
| Red Hat build of Apache Camel - HawtIO 4 | Versions not published | |
| Red Hat Data Grid 8 | Versions not published | |
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published | |
| Red Hat Fuse 7 | Versions not published | |
| Red Hat JBoss Enterprise Application Platform 7 | Versions not published | |
| Red Hat JBoss Enterprise Application Platform 8 | Versions not published |
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References
- RHSA-2025:23143 access.redhat.com
- RHSA-2026:0383 access.redhat.com
- RHSA-2026:0384 access.redhat.com
- RHSA-2026:0386 access.redhat.com
- RHSA-2026:33371 access.redhat.com
- RHSA-2026:33372 access.redhat.com
- RHSA-2026:3889 access.redhat.com
- RHSA-2026:3891 access.redhat.com
- RHSA-2026:3892 access.redhat.com
- RHSA-2026:4915 access.redhat.com
- RHSA-2026:4916 access.redhat.com
- RHSA-2026:4917 access.redhat.com
- RHSA-2026:4924 access.redhat.com
- RHSA-2026:76128 access.redhat.com
- RHSA-2026:76129 access.redhat.com
- RHSA-2026:76130 access.redhat.com
- RHSA-2026:76132 access.redhat.com
- RHSA-2026:76134 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2392306 bugzilla.redhat.com
- github.com github.com
- github.com github.com
- issues.redhat.com issues.redhat.com
- kb.cert.org kb.cert.org
Timeline
- Published
- Last modified