CVE-2026-44890

Netty is a network application framework for development of protocol servers and clients. In netty-codec-redis prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can cause DoS by sending crafted Redis payloads across multiple connections without `\r\n`. This exhausts the server's direct memory pool (OutOfDirectMemoryError), preventing legitimate connections from being processed. Versions 4.1.135.Final and 4.2.15.Final patch the issue.

• CWE-400
• 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-6ghj-frrj-jjj3Vendor 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-2026-44890
• https://bugzilla.redhat.com/show_bug.cgi?id=2488053
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44890.json

Published

Jun 11, 2026

Last Modified

Aug 12, 2026

Status

Modified

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