HIGH 7.5 NVD

CVE-2026-87742

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

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).

References

https://access.redhat.com/security/cve/CVE-2026-87742
https://bugzilla.redhat.com/show_bug.cgi?id=2530522

Published: 2026-09-17 · Source: NVD · Feed updated: 2026-09-17

This high severity vulnerability with a CVSS score of 7.5 was published on 2026-09-17 via NVD.

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