QAbstractOAuth in Qt Network Authorization in Qt before 5.15.17, 6.x before 6.2.13, 6.3.x through 6.5.x before 6.5.6, and 6.6.x through 6.7.x before 6.7.1 uses only the time to seed the PRNG, which may result in guessable values.
https://codereview.qt-project.org/c/qt/qtnetworkauth/+/560368
https://codereview.qt-project.org/c/qt/qtnetworkauth/+/560317