We noticed a problem which not only could stop our project but in the worst case could impact our company (unlikely but possible).
The colleague, who introduced the problem, has a history of pushing away the blame. The colleague didn't actively pinpoint to someone else, but that still threw a bad light on others. The area of work was handed over multiple times, once I also was responsible but I didn't catch the problem.
As the colleague is close to our boss, I fear that I won't have a chance to correct the facts afterwards (how to do that is discussed in many other questions on this website).
Is there any possibility to make clear in advance that I'm not to blame without leaving a bad impression?
Currently I think by doing that I will start the blame game or people might be suspicious that it's my fault because I'm being defensive.