Description (CNA)
A flaw was found in Netty's HttpServerCodec. A remote, unauthenticated attacker can exploit this vulnerability by pipelining HTTP/1.1 requests on a single connection and withholding reads. This action causes the methodOverflowQueue to grow without limit, leading to unbounded heap memory consumption and a denial of service due to memory exhaustion.
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-2026-93491
- https://bugzilla.redhat.com/show_bug.cgi?id=2536891
- 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.