CVE-2026-8168
qt5-qtsvg: qt6-qtsvg: qt: Denial of Service via deeply nested SVG elements
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 19, 2026
Updated · October 23, 2026
Description
A flaw was found in the Qt SVG module. A remote attacker could trigger this issue by providing a specially crafted SVG (Scalable Vector Graphics) file containing deeply nested elements. When parsed, this leads to uncontrolled recursion and stack exhaustion, resulting in an application crash and a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS / CWE
CVSS 3.1 · 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-770 · Allocation of Resources Without Limits or Throttling