Such is the nature of security vulnerabilities: you look at it and it looks like a really stupid mistake, one that would be really easy to not have made. But the difficulty of writing secure software is not about avoiding any one particular mistake; it&#x27;s the sheer number of mistakes available to be made, so that it&#x27;s easy for one mistake to slip through the cracks. To their credit, they seem to have been pretty quick to respond and fix this one (reported on Sep 25, patch live on Oct 1).