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Description

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.

PUBLISHED Reserved 2026-05-07 | Published 2026-06-11 | Updated 2026-06-12 | Assigner GitHub_M




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-400: Uncontrolled Resource Consumption

Product status

>= 4.2.0.Final, < 4.2.15.Final
affected

< 4.1.135.Final
affected

References

github.com/.../netty/security/advisories/GHSA-6ghj-frrj-jjj3

github.com/netty/netty/releases/tag/netty-4.1.135.Final

github.com/netty/netty/releases/tag/netty-4.2.15.Final

cve.org (CVE-2026-44890)

nvd.nist.gov (CVE-2026-44890)

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