The Last.fm desktop app (Last.fm Scrobbler) through 2.1.39 on macOS makes HTTP requests that include an API key without the use of SSL/TLS. Although there is an Enable SSL option, it is disabled by default, and cleartext requests are made as soon as the app starts.
{
"cpe": "cpe:2.3:a:last.fm:last.fm_desktop:*:*:*:*:*:macos:*:*",
"source": "CPE_RANGE",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "2.1.39"
}
]
}