In words.protocols.jabber.xmlstream in Twisted through 19.2.1, XMPP support did not verify certificates when used with TLS, allowing an attacker to MITM connections.
{
"source": "CPE_FIELD",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "19.2.1"
}
],
"cpe": "cpe:2.3:a:twisted:twisted:*:*:*:*:*:*:*:*"
}