CVE-2021-31815

LOW 3.3CVE-2021-31815 · Published 28/04/2021 · updated 17/06/2026

In short

CVE-2021-31815 is a LOW (CVSS 3.3) vulnerability affecting google/apple exposure notifications (google).
Chance of exploitation in the next 30 days (EPSS): 0.13%, higher than 2.7% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
google/apple exposure notifications google	`≤ 2021-04-27`	No fix yet

Description

GAEN (aka Google/Apple Exposure Notifications) through 2021-04-27 on Android allows attackers to obtain sensitive information, such as a user's location history, in-person social graph, and (sometimes) COVID-19 infection status, because Rolling Proximity Identifiers and MAC addresses are written to the Android system log, and many Android devices have applications (preinstalled by the hardware manufacturer or network operator) that read system log data and send it to third parties. NOTE: a news outlet (The Markup) states that they received a vendor response indicating that fix deployment "began several weeks ago and will be complete in the coming days."

References

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