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CVE-2025-10729

qtsvg: Use-after-free vulnerability in Qt SVG

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Severity

Important

Red Hat Product Security

8.6

CVSS 3.1

Review impact separately from score.

Published · October 3, 2025

Updated · March 18, 2026

Description

A use after free flaw has been discovered in the Qt SVG library. The qsvghandler.cpp module will parse a <pattern> node which is not a child of a structural node. The node will be deleted after creation but might be accessed later leading to a use after free.

Statement

Red Hat products incorporate the Qt SVG library for rendering SVGs to users and as such a user must interact with a malicious SVG file to trigger this vulnerability.

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 · 8.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CWE-416 · Use After Free