CVE-2026-93488

Fixed in a distro release EPSS <1%CVSS 7.5

A flaw was found in Netty. SpdySessionHandler accepts an unlimited number of concurrent remote-initiated streams because localConcurrentStreams defaults to Integer.MAX_VALUE and the handler provides no API to change it. A remote peer can open a SPDY connection and send a large number of SYN_STREAM frames with FLAG_FIN=0, causing unbounded heap and direct memory allocation that can lead to JVM OutOfMemoryError and a denial of service.

Published 2026-09-18 · CVE record · OSV

Products: Red Hat Build of Apache Camel 3.33.3.SP2, Red Hat Build of Debezium 3.6, Red Hat build of Quarkus 3.27.5.SP2, Red Hat build of Quarkus 3.33.3.SP2, Red Hat AMQ Broker 7, Red Hat AMQ Clients, 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 Keycloak, Red Hat Data Grid 8, Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform 7, Red Hat JBoss Enterprise Application Platform 8, Red Hat Single Sign-On 7

Distro releases