CVE-2020-12856: Alberta Abtracetogether

Critical severity, CVSS 9.8. EPSS: 5.1% chance of exploitation in the next 30 days.

OpenTrace, as used in COVIDSafe through v1.0.17, TraceTogether, ABTraceTogether, and other applications on iOS and Android, allows remote attackers to conduct long-term re-identification attacks and possibly have unspecified other impact, because of how Bluetooth is used.

Affected products

• Alberta Abtracetogether: affected versions not specified
• Health Covidsafe: up to and including 1.0.17; affected versions not specified
• Tracetogether Tracetogether: affected versions not specified

Published 2020-05-18. Last modified 2026-06-17.