---
title: "io.netty:netty-handler — CVE-2026-75595"
description: "A security flaw affects the Maven package io.netty:netty-handler. Affected versions: >= 4.2.0.Final, <= 4.2.16.Final. Fixed from version 4.2.17.Final."
canonical: https://inyourgeek.com/en/failles-de-securite/2026-09-08-cve-2026-75595
type: faille-de-securite
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-09-08
dateModified: 2026-09-08
---
# io.netty:netty-handler — CVE-2026-75595

A security flaw affects the Maven package io.netty:netty-handler. Affected versions: >= 4.2.0.Final, <= 4.2.16.Final. Fixed from version 4.2.17.Final.

## What to do

Update io.netty:netty-handler to 4.2.17.Final or later.

| Fact | Value |
| --- | --- |
| Package | io.netty:netty-handler |
| Ecosystem | Maven (Java) |
| Class | Other |
| Affected versions | >= 4.2.0.Final, <= 4.2.16.Final |
| Fixed version | 4.2.17.Final |
| CVE | CVE-2026-75595 |
| GHSA | GHSA-c4c3-7fpv-j4q5 |
| Published on | September 8, 2026 |
| Severity | Critical |

## Sources

- [GitHub Security Advisory — GHSA-c4c3-7fpv-j4q5](https://github.com/advisories/GHSA-c4c3-7fpv-j4q5) — GitHub Security Advisories
- [NVD — CVE-2026-75595](https://nvd.nist.gov/vuln/detail/CVE-2026-75595) — NVD

---

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