7.5
High
CVE-2026-93558 A flaw was found in Netty's WebSocketServerExtensionHandler
Description
A flaw was found in Netty's WebSocketServerExtensionHandler. A remote, unauthenticated attacker can exploit this vulnerability by using HTTP/1.1 pipelining to send requests faster than the application can respond. This leads to an unbounded growth of a per-connection queue, consuming excessive memory. Eventually, this can cause the Java Virtual Machine (JVM) to exhaust its heap, resulting in a Denial of Service (DoS) for the affected server.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat AMQ Broker 7 | Versions not published | |
| Red Hat AMQ Clients | Versions not published | |
| Red Hat build of Apache Camel 4 for Quarkus 3 | Versions not published | |
| Red Hat build of Apache Camel for Spring Boot 4 | Versions not published | |
| Red Hat build of Apicurio Registry 3 | Versions not published | |
| Red Hat build of Debezium 3 | Versions not published | |
| Red Hat Build of Keycloak | Versions not published | |
| Red Hat build of Quarkus | Versions not published | |
| Red Hat Data Grid 8 | Versions not published |
Show the 8 other branches Hide the 8 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| 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 | |
| Red Hat Single Sign-On 7 | Versions not published | |
| Red Hat Build of Apache Camel 3.33.3.SP2 4.1 | earliest → < 4.1.138.Final-redhat-00001 | 4.1.138.Final-redhat-00001 |
| Red Hat build of Quarkus 3.27.5.SP2 | Versions not published | |
| Red Hat build of Quarkus 3.33.3.SP2 | Versions not published | |
| Red Hat Build of Debezium 3.6 | Versions not published |
References
- RHSA-2026:69440 access.redhat.com
- RHSA-2026:69470 access.redhat.com
- RHSA-2026:70257 access.redhat.com
- RHSA-2026:83612 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2536932 bugzilla.redhat.com
Timeline
- Published
- Last modified
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