---
id: CVE-2026-100658
title: 'Rejected reason: This CVE ID has been rejected as a duplicate.'
summary: 'Rejected reason: This CVE ID has been rejected as a duplicate.'
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-770
vendor: netty
product: netty
affected:
  - netty >= 4.1.88.Final < 4.1.138.Final
  - netty >= 4.2.0.Final < 4.2.18.Final
published: '2026-09-26'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T22:17:30.340'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100658'
references:
  - url: 'https://github.com/netty/netty/security/advisories/GHSA-2g37-3h88-55hc'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/netty-before-4.1.138-final-denial-of-service-via-websocketserverextensionhandler
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
cvssSource: nvd
ingestedAt: '2026-09-26T13:33:20.918Z'
---

## Overview

Rejected reason: This CVE ID has been rejected as a duplicate.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.