This update for libqt5-qtwebengine fixes the following issues:
Update to version 5.15.3
CVE fixes backported in chromium updates:
{
    "binaries": [
        {
            "libQt5PdfWidgets5": "5.15.3-lp152.3.3.4",
            "libqt5-qtpdf-devel": "5.15.3-lp152.3.3.4",
            "libqt5-qtpdf-examples": "5.15.3-lp152.3.3.4",
            "libqt5-qtwebengine-private-headers-devel": "5.15.3-lp152.3.3.4",
            "libqt5-qtwebengine": "5.15.3-lp152.3.3.4",
            "libqt5-qtpdf-imports": "5.15.3-lp152.3.3.4",
            "libQt5Pdf5": "5.15.3-lp152.3.3.4",
            "libqt5-qtwebengine-devel": "5.15.3-lp152.3.3.4",
            "libqt5-qtwebengine-examples": "5.15.3-lp152.3.3.4",
            "libqt5-qtpdf-private-headers-devel": "5.15.3-lp152.3.3.4"
        }
    ]
}