A simple solution would be
git push origin HEAD:slide-security-fix
it will tell git to push the commit currently checked out, on the branch called slide-security-fix
of the remote
You could also give a proper name to the branch you're working on. You could for example do
#Create a local branch on the current commit. Call it slide-security-fix. And check it out
git checkout -b slide-security-fix
#Then push
git push origin slide-security-fix