7.5
High
CVE-2026-87742 A flaw was found in quarkus-websockets-next
Description
A flaw was found in quarkus-websockets-next. This vulnerability allows a remote attacker to cause a Denial of Service (DoS) by streaming messages over a single connection faster than the application can process them. Due to unbounded message buffering and a lack of read backpressure, this rapidly exhausts heap space, leading to a java.lang.OutOfMemoryError that crashes the Java Virtual Machine (JVM).
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Exploit Intelligence | Versions not published | |
| Red Hat build of Quarkus | Versions not published | |
| Red Hat Enterprise Linux AI (RHEL AI) 3 | Versions not published | |
| Red Hat build of Quarkus 3.27.5.SP2 | Versions not published | |
| Red Hat build of Quarkus 3.33.3.SP2 | Versions not published |
References
- RHSA-2026:69440 access.redhat.com
- RHSA-2026:69470 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2530522 bugzilla.redhat.com
Timeline
- Published
- Last modified
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