In Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2, there can be an application crash in QXmlStreamReader via a crafted XML string that triggers a situation in which a prefix is greater than a length.
bugreports.qt.io/browse/QTBUG-114829
codereview.qt-project.org/c/qt/qtbase/+/455027
lists.debian.org/debian-lts-announce/2023/08/msg00028.html
lists.debian.org/debian-lts-announce/2024/04/msg00027.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3JR3N3IF5MUSETGYE46OZFOGGPY3VZT/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SZK7EDD4ILPPSQAYO54FANUC4NFYLTHU/