High 7.5Published Jun 12, 2026

CVE-2026-50011Netty has unbounded pre-allocation in RedisArrayAggregator from RESP array length

Updated under an hour ago (Oct 28, 2026, 11:00 AM ET)

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Every CVE for netty

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-400, CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Modified
Record last updated: Sep 18, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

netty netty netty:netty (from the name)	from 4.2.0.Final, < 4.2.15.Final; before 4.1.135.Final	CNA record
Red Hat Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16 redhat:apache_camel_spring_boot	from codec-redis not affected	CISA ADP
Red Hat Red Hat Data Grid 8.6.2 redhat:jboss_data_grid	from codec-redis not affected	CISA ADP
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 redhat:jboss_enterprise_application_platform_els	from 0:2.16.0-22.redhat_00057.1.el7eap not affected	CISA ADP
Red Hat Red Hat JBoss Enterprise Application Platform 8.1 redhat:jboss_enterprise_application_platform_xp	from codec-redis not affected	CISA ADP
Red Hat Red Hat Fuse 7 redhat:jboss_fuse	7	CISA ADP
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack redhat:jbosseapxp	All versions	CISA ADP
Red Hat Red Hat Single Sign-On 7 redhat:red_hat_single_sign_on	7	CISA ADP
netty netty netty:netty	before 4.1.135; from 4.2.0 before 4.2.15	NVD

References

References

https://github.com/netty/netty/security/advisories/GHSA-5w86-c3rq-vjj7	x-refsource-confirm, vendor-advisory
https://github.com/netty/netty/releases/tag/netty-4.1.135.Final	x-refsource-misc, release-notes
https://github.com/netty/netty/releases/tag/netty-4.2.15.Final	x-refsource-misc, release-notes
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
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.