CVE-2026-97845Uncontrolled recursion vulnerability in QXmlSimpleReader XML parsing impacts Qt

Description

An uncontrolled recursion vulnerability has been discovered in the Qt QXmlSimpleReader XML parsing functionality of the Qt 5 Core Compatibility APIs module (Qt 6) and the Qt XML module (Qt 5).

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://www.qt.io/security-advisories?search=CVE-2026-97845 vendor-advisory
• https://codereview.qt-project.org/c/qt/qt5compat/+/771290 patch
• https://codereview.qt-project.org/c/qt/qt5compat/+/774512 patch
• https://codereview.qt-project.org/c/qt/qt5compat/+/774513 patch
• https://codereview.qt-project.org/c/qt/qt5compat/+/774632 patch
• https://codereview.qt-project.org/c/qt/qt5compat/+/760219 patch
• https://codereview.qt-project.org/c/qt/qt5compat/+/760220 patch