REDHAT-BUG-2488441: High severity Netty Netty HTTP/3 codec vulnerability

Published Jun 12, 2026
·
Updated

Netty is a network application framework for development of protocol servers and clients. Prior to version 4.2.15.Final, a memory exhaustion vulnerability in the Netty HTTP/3 codec allows the creation of an infinite number of blocked streams, which can cause OOM error. Version 4.2.15.Final patches the issue.

Affected Software

1 affected component
Netty Netty HTTP/3 codec<4.2.15.Final

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Netty HTTP/3 codec to a version that resolves this vulnerability.

    Fixed in 4.2.15.Final

Event History

Jun 12, 2026
Data Sourced
via Red Hat·04:03 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2488441?

The severity of REDHAT-BUG-2488441 is classified as high with a risk score of 7.

2

What is the main issue described in REDHAT-BUG-2488441?

REDHAT-BUG-2488441 describes a memory exhaustion vulnerability in the Netty HTTP/3 codec that can create an infinite number of blocked streams.

3

How do I fix REDHAT-BUG-2488441?

To fix REDHAT-BUG-2488441, update to Netty version 4.2.15.Final or later, which patches the vulnerability.

4

Which software is affected by REDHAT-BUG-2488441?

REDHAT-BUG-2488441 affects the Netty HTTP/3 codec within the Netty framework.

5

What type of vulnerability is REDHAT-BUG-2488441?

REDHAT-BUG-2488441 is a memory exhaustion vulnerability that can lead to out-of-memory (OOM) errors.

Contact

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