CVE-2026-50011

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.

• CWE-400
• CWE-770
• CWE-770

• 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-2026:53806
• 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

Published

Jun 12, 2026

Last Modified

Aug 12, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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