Encrypted S/MIME parts in a crafted multipart/alternative message can leak plaintext when included in a a HTML reply/forward. This vulnerability affects Thunderbird < 68.1 and Thunderbird < 60.9.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-11739.json"
[ { "events": [ { "introduced": "0" }, { "fixed": "60.9.0" } ] }, { "events": [ { "introduced": "68.0" }, { "fixed": "68.1.0" } ] } ]