it doesn't make sense for
Uber to a) publish a list
of current unpatched
security vulnerabilities
Hackerone could require them to publish a list of hashes of unambiguous descriptions of known bugs. That way they could prove beyond doubt which issues were already known - much like astronomers published anagrams to prove their discoveries' priority in the 1500s.It wouldn't solve the problem of people wasting their time rediscovering bugs that don't pay out, of course.