Elasticsearch versions 7.0.0-7.3.2 and 6.7.0-6.8.3 contain a username disclosure flaw was found in the API Key service. An unauthenticated attacker could send a specially crafted request and determine if a username exists in the Elasticsearch native realm.
{
"source": "CPE_RANGE",
"cpe": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "6.7.0"
},
{
"last_affected": "6.8.3"
},
{
"introduced": "7.0.0"
},
{
"last_affected": "7.3.2"
}
]
}