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.
References10
- codereview.qt-project.org/c/qt/qtsvg/+/730501
- codereview.qt-project.org/c/qt/qtsvg/+/730590
- codereview.qt-project.org/c/qt/qtsvg/+/730591
- codereview.qt-project.org/c/qt/qtsvg/+/730892
- codereview.qt-project.org/c/qt/qtsvg/+/731257
- codereview.qt-project.org/c/qt/qtsvg/+/733245
- codereview.qt-project.org/c/qt/qtsvg/+/738811
- codereview.qt-project.org/c/qt/qtsvg/+/743488
- codereview.qt-project.org/c/qt/qtsvg/+/748966
- codereview.qt-project.org/c/qt/qtsvg/+/756512
Metrics
- CVSS 4.0
-
7.1
HIGH
Score source: CNA
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:X - EPSS — exploit probability
- 0% percentile: 35 · as of 10 November 2026
- CWE
- CWE-674
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.