I am getting Permission to ORG/REPO denied to USER just recently whenever I try and push commits to github, where USER is not me! I can't even find that USER anywhere in ~/.gitconfig or ~/.git-credentials.
I checked my ~/.ssh folder as well to double check if my keys got compromised. I even grepped for USER everywhere to no avail.
Where is that coming from? Like I'd have expected USER to be my account not someone else. I checked that USER on github and they're one of the contributors in one repository that I contribute to. But I was pushing to a different repository they have no access to.