CVE-2026-8168
Denial-of-service vulnerability in the SVG parser and renderer impacts Qt
Description
Uncontrolled recursion in the SVG parser and renderer of the Qt SVG module (QtSvg) in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted SVG file with deeply nested elements.
INFO
Published Date :
Oct. 19, 2026, 2:17 p.m.
Last Modified :
Oct. 19, 2026, 3:17 p.m.
Remotely Exploit :
Yes !
Source :
a59d8014-47c4-4630-ab43-e1b13cbe58e3
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | HIGH | a59d8014-47c4-4630-ab43-e1b13cbe58e3 | ||||
| CVSS 4.0 | HIGH | a59d8014-47c4-4630-ab43-e1b13cbe58e3 |
Solution
- Update the Qt SVG module to a patched version.
- Avoid processing untrusted SVG files.
- Validate SVG file structure before rendering.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-8168.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-8168 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-8168
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-8168 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-8168 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 19, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-8168', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-10-19T14:27:04.849301Z'} -
New CVE Received by a59d8014-47c4-4630-ab43-e1b13cbe58e3
Oct. 19, 2026
Action Type Old Value New Value Added Description Uncontrolled recursion in the SVG parser and renderer of the Qt SVG module (QtSvg) in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted SVG file with deeply nested elements. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-674 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/8xxx/CVE-2026-8168.json">CVE-2026-8168</a> Added Reference https://codereview.qt-project.org/c/qt/qtsvg/+/730501 Added Reference https://codereview.qt-project.org/c/qt/qtsvg/+/730590 Added Reference https://codereview.qt-project.org/c/qt/qtsvg/+/730591 Added Reference https://codereview.qt-project.org/c/qt/qtsvg/+/730892 Added Reference https://codereview.qt-project.org/c/qt/qtsvg/+/731257 Added Reference https://codereview.qt-project.org/c/qt/qtsvg/+/733245 Added Reference https://codereview.qt-project.org/c/qt/qtsvg/+/738811 Added Reference https://codereview.qt-project.org/c/qt/qtsvg/+/743488 Added Reference https://codereview.qt-project.org/c/qt/qtsvg/+/748966 Added Reference https://codereview.qt-project.org/c/qt/qtsvg/+/756512 Added Reference https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-8168: