---
id: CVE-2026-96432
title: Null pointer dereference vulnerability in QNetworkAccessManager impacts Qt
summary: >-
  A malicious or compromised HTTP/2 server withholding SETTINGS ACK can send
  RST_STREAM on a completed stream, planting a null pointer, and then send a
  PUSH_PROMISE for that stream, causing a null pointer dereference in the
  QNetworkAccessM…
severity: low
cvss: 2.1
cvssVector: >-
  CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/RE:L/U:Green
cvssSource: cna
cwe:
  - CWE-476
vendor: qt
product: qt
affected:
  - qt >= 6.8.0 <= 6.8.9
  - qt >= 6.9.0 <= 6.11.2
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-26T13:20:18.870440Z'
published: '2026-10-26'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T14:35:18.098Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-96432'
references:
  - url: >-
      https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-96432:
  - url: 'https://codereview.qt-project.org/c/qt/qtbase/+/759718'
tags:
  - cve.org
ingestedAt: '2026-10-26T12:26:18.479Z'
---

## Overview

A malicious or compromised HTTP/2 server withholding SETTINGS ACK can send RST_STREAM on a completed stream, planting a null pointer, and then send a PUSH_PROMISE for that stream, causing a null pointer dereference in the QNetworkAccessManager class of the Qt Network module that crashes the application.

## Affected

- `qt >= 6.8.0 <= 6.8.9`
- `qt >= 6.9.0 <= 6.11.2`

## Remediation

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