CVE-2021-29950
Thunderbird unprotects a secret OpenPGP key prior to using it for a decryption, signing or key import task. If the task runs into a failure, the secret key may remain in memory in its unprotected state. This vulnerability affects Thunderbird < 78.8.1. Date published : 2021-06-24 https://bugzilla.mozilla.org/show_bug.cgi?id=1673239