Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-12300.json"