When a call-site passes a subject for an email that contains line-breaks in Apache Commons Email 1.0 through 1.4, the caller can add arbitrary SMTP headers.
[
{
"product": "Apache Commons Email",
"vendor": "Apache Software Foundation",
"versions": [
{
"status": "affected",
"version": "1.0 to 1.4"
}
]
}
]