CVE-2026-42578 | Netty up to 4.1.133.Final/4.2.13.Final newInitialMessage response splitting

A vulnerability classified as problematic has been found in Netty up to 4.1.133.Final/4.2.13.Final. This impacts the function newInitialMessage. This manipulation causes http response splitting.

This vulnerability is handled as CVE-2026-42578. The attack can be initiated remotely. There is not any exploit available.

It is recommended to upgrade the affected component.VulDB Recent EntriesRead More