---
id: CVE-2026-105924
title: >-
  NULL pointer dereference vulnerability in QCborValue to JSON conversion
  impacts Qt
summary: >-
  A NULL pointer dereference vulnerability in the Qt QCborValue to JSON
  conversion of the Qt Core module.
severity: medium
cvss: 4.3
cvssVector: >-
  CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/R:U/RE:L/U:Green
cvssSource: cna
cwe:
  - CWE-476
vendor: qt
product: Qt
affected:
  - Qt >= 5.12.0 <= 6.8.9
  - Qt >= 6.9.0 <= 6.11.2
  - Qt >= 6.12.0 < 6.12.1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-30T15:24:54.286064Z'
published: '2026-10-30'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T15:25:08.893Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-105924'
references:
  - url: >-
      https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-105924:
  - url: 'https://codereview.qt-project.org/c/qt/qtbase/+/766809'
tags:
  - cve.org
epss: 0.00163
epssPercentile: 0.05535
ingestedAt: '2026-11-05T16:07:30.415Z'
---

## Overview

A NULL pointer dereference vulnerability in the Qt QCborValue to JSON conversion of the Qt Core module.

## Affected

- `Qt >= 5.12.0 <= 6.8.9`
- `Qt >= 6.9.0 <= 6.11.2`
- `Qt >= 6.12.0 < 6.12.1`

## Remediation

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