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.
Metrics
CVSS 4.0 7.1/10
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/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:XWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| qt | qt | >= 4.1.0, < 6.8.9; >= 6.9.0, < 6.11.2 |
References
- https://codereview.qt-project.org/c/qt/qtsvg/+/730501
- https://codereview.qt-project.org/c/qt/qtsvg/+/730590
- https://codereview.qt-project.org/c/qt/qtsvg/+/730591
- https://codereview.qt-project.org/c/qt/qtsvg/+/730892
- https://codereview.qt-project.org/c/qt/qtsvg/+/731257
- https://codereview.qt-project.org/c/qt/qtsvg/+/733245
- https://codereview.qt-project.org/c/qt/qtsvg/+/738811
- https://codereview.qt-project.org/c/qt/qtsvg/+/743488
- https://codereview.qt-project.org/c/qt/qtsvg/+/748966
- https://codereview.qt-project.org/c/qt/qtsvg/+/756512
- https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-8168:
Timeline
- Published
- Oct 19, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Awaiting Analysis