CVE-2026-100140

Description

An integer overflow vulnerability in the Qt XML parsing (Qt5Compat / QXmlSimpleReader) functionality of Qt.

Affected Platforms

Weakness Type

CWE-190

References

• https://codereview.qt-project.org/c/qt/qt5compat/+/764751
• https://codereview.qt-project.org/c/qt/qt5compat/+/768900
• https://codereview.qt-project.org/c/qt/qt5compat/+/768901
• https://codereview.qt-project.org/c/qt/qt5compat/+/768902
• https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-100140: