apinit on Cray devices with CLE before 4.2.UP02 and 5.x before 5.1.UP00 does not use alpsauth data to validate the UID in a launch message,…

apinit on Cray devices with CLE before 4.2.UP02 and 5.x before 5.1.UP00 does not use alpsauth data to validate the UID in a launch message, which allows local users to gain privileges via a modified aprun program, aka ID FN5912.