Provide references for CVE-2021-31815.
Where can I find more information about CVE-2021-31815?
References are available at: https://themarkup.org/privacy/2021/04/27/google-promised-its-contact-tracing-app-was-completely-private-but-it-wasnt, https://blog.appcensus.io/2021/04/27/why-google-should-stop-logging-contact-tracing-data/.