CVE-2020-24721
An issue was discovered in the GAEN (aka Google/Apple Exposure Notifications) protocol through 2020-09-29, as used in COVID-19 applications on Android and iOS. It allows a user to be put in a position where he or she can be coerced into proving or disproving an exposure notification, because of the persistent state of a private framework.
Date published : 2020-09-30
https://seclists.org/fulldisclosure/2020/Sep/53
http://packetstormsecurity.com/files/159419/Corona-Exposure-Notifications-API-Data-Leakage.html