Thanks for the correction. I roughly knew the quote and when I googled it Kurt Cobain came back all over the place.
On the other hand, my attempts to search for the word "paranoid" in the book on Amazon turn up nothing. And there is a semi-authoritative page that makes the same claim that you do, saying that the closest he found is a quote about a "persecution complex": https://quoteinvestigator.com/2016/07/09/paranoid/
Do you have more info?
If multiple sources are saying it is, they must be getting the idea from each other.