Medium [CVE-2026-100658] Denial of Service via unbounded queue in WebSocketServerExtensionHandler
This medium-severity Red Hat Linux advisory covers CVE-2026-100658; related products: Exploit Intelligence, OpenShift Serverless, Red Hat AMQ Broker 7.
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Summary
Denial of Service via unbounded queue in WebSocketServerExtensionHandler. Red Hat rates this moderate (CVSS 5.3).
Weakness: CWE-770.
Affected products named by the advisory: Exploit Intelligence; OpenShift Serverless; Red Hat AMQ Broker 7; Red Hat AMQ Clients; and 16 more.
Affected products named by the advisory: Red Hat build of Apache Camel 4 for Quarkus 3; Red Hat build of Apache Camel for Spring Boot 4; Red Hat build of Apicurio Registry 3; Red Hat build of Debezium 3; and 12 more.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
Mitigation checklist
- Update to io.netty:netty-codec-http version 4.1.138.Final or 4.2.18.Final or later, which introduces bounds on the per-connection queue in WebSocketServerExtensionHandler to prevent unbounded memory growth.
Official advisory · high-confidence parse· fetched 6 days ago·verify at source
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