mongod in MongoDB 2.6, when using 2.4-style users, and 2.4 allow remote attackers to cause a denial of service (memory consumption and process termination) by leveraging in-memory database representation when authenticating against a non-existent database.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "2.4.0"
},
{
"introduced": "0"
},
{
"last_affected": "2.6.0"
}
]
}