Description
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, RedisArrayAggregator pre-allocates ArrayList with initial capacity equal to the RESP array element count declared in an array header. That count is taken from the wire before the corresponding child messages exist. A small malicious header can claim a huge initial capacity. Versions 4.1.135.Final and 4.2.15.Final patch the issue.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| netty | netty | >= 4.2.0.Final, < 4.2.15.Final; < 4.1.135.Final |
| Red Hat | Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16 | — |
| Red Hat | Red Hat Data Grid 8.6.2 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | — |
References
- https://github.com/netty/netty/releases/tag/netty-4.1.135.FinalRelease Notes
- https://github.com/netty/netty/releases/tag/netty-4.2.15.FinalRelease Notes
- https://github.com/netty/netty/security/advisories/GHSA-5w86-c3rq-vjj7Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:37390
- https://access.redhat.com/errata/RHSA-2026:41951
- https://access.redhat.com/errata/RHSA-2026:50085
- https://access.redhat.com/errata/RHSA-2026:53644
- https://access.redhat.com/errata/RHSA-2026:53645
- https://access.redhat.com/errata/RHSA-2026:53646
- https://access.redhat.com/security/cve/CVE-2026-50011
- https://bugzilla.redhat.com/show_bug.cgi?id=2488413
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-50011.json
Timeline
- Published
- Jun 12, 2026
- Last modified
- Sep 18, 2026
- NVD status
- Modified