An issue was discovered in Qt before 5.15.15, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3. There are infinite loops in recursive entity expansion.
codereview.qt-project.org/c/qt/qtbase/+/488960
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/F5C3NYVJ73ITE6HUOVVHBUAGORVEJRHO/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XEGQ6DFTL2BEJMHCD5FJGI6XLWQI7UEA/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XFZORZYCMUZZFIOEZICJ7VH2BZIGY3HV/