Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Build of Apache Camel 3.33.3.SP2 | unaffected 4.1.138.Final-redhat-00001 before * |
| Red Hat / Red Hat Build of Debezium 3.6 | unaffected |
| Red Hat / Red Hat build of Quarkus 3.27.5.SP2 | unaffected |
| Red Hat / Red Hat build of Quarkus 3.33.3.SP2 | unaffected |
| Red Hat / Red Hat AMQ Broker 7 | affected |
| Red Hat / Red Hat AMQ Clients | affected |
| Red Hat / Red Hat build of Apache Camel 4 for Quarkus 3 | affected |
| Red Hat / Red Hat build of Apache Camel for Spring Boot 4 | affected |
| Red Hat / Red Hat build of Apicurio Registry 3 | affected |
| Red Hat / Red Hat Build of Keycloak | affected |
| Red Hat / Red Hat Data Grid 8 | affected |
| Red Hat / Red Hat Fuse 7 | unknown |
| Red Hat / Red Hat JBoss Enterprise Application Platform 7 | unknown |
| Red Hat / Red Hat JBoss Enterprise Application Platform 8 | affected |
| Red Hat / Red Hat Single Sign-On 7 | affected |
CWE
CWE-770
References
- https://access.redhat.com/errata/RHSA-2026:69440
- https://access.redhat.com/errata/RHSA-2026:69470
- https://access.redhat.com/errata/RHSA-2026:70257
- https://access.redhat.com/errata/RHSA-2026:83612
- https://access.redhat.com/security/cve/CVE-2026-93488
- https://bugzilla.redhat.com/show_bug.cgi?id=2536887
- https://github.com/netty/netty/releases/tag/netty-4.1.138.Final
- https://github.com/netty/netty/releases/tag/netty-4.2.18.Final
ADP enrichment
No English description supplied.
No references supplied.