---
id: CVE-2026-19248
title: >-
  QDomDocument XML parsing is vulnerable to a remotely-triggerable
  denial-of-service crash when processing untrusted input.
summary: >-
  QDomDocument XML parsing is vulnerable to a remotely-triggerable
  denial-of-service crash when processing untrusted input.
severity: high
cvss: 7.1
cvssVector: >-
  CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/AU:N/R:U/V:D/RE:L
cwe:
  - CWE-674
  - CWE-776
vendor: qt
product: qt
affected:
  - qt >= 2.2.0 <= 6.8.8
  - qt >= 6.9.0 <= 6.11.1
published: '2026-09-16'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T19:21:34.307'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19248'
references:
  - url: 'https://codereview.qt-project.org/c/qt/qtbase/+/740427'
    label: a59d8014-47c4-4630-ab43-e1b13cbe58e3
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-19248.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-19248'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2535011'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-19248'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19248'
  - url: 'https://access.redhat.com/errata/RHSA-2026:68801'
  - url: 'https://access.redhat.com/errata/RHSA-2026:59393'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.0041
epssPercentile: 0.32399
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-16T15:02:45.117734Z'
cvssSource: cna
scores:
  cna: 7.1
  vendor: 6.5
ingestedAt: '2026-09-16T07:51:48.490Z'
patched:
  - hardened_images
---

## Overview

QDomDocument XML parsing is vulnerable to a remotely-triggerable denial-of-service crash when processing untrusted input.

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-19248.json)
- **RHSA-2026:68801** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-09-18 · [advisory](https://access.redhat.com/errata/RHSA-2026:68801)
- **RHSA-2026:59393** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-08-25 · [advisory](https://access.redhat.com/errata/RHSA-2026:59393)