Hi @sebastian ,
Regarding [1], I can't reproduce this behavior. When I add OSS Index I see vulnerabilities from it and also from PGVC, though this is only on the latest v2023 build, so maybe this works differently on another version?
For [2], you are correct. There are a lot more of these in the dataset than we initially thought. We plan to resolve this by filling in the missing data from NVD, though I can't give an estimate on when we will have that (maybe @apxltd can give you a rough idea of our schedule).
Finally, for [3], I think we will end up storing a CVE for most of these to help populate missing CVSS scores if for no other reason. I think this would be part of updates we do to address [2].
-Greg