qtbase: qt5-qtbase: qt6-qtbase: qtbase: Denial of Service via uncontrolled recursion in XML serialization

A flaw was found in qtbase. Uncontrolled recursion in Qt's QDomDocument serialization QtXml allows a remote attacker to provide deeply nested untrusted XML, leading to stack exhaustion. This can cause the application to crash, resulting in a Denial of Service DoS...