Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to validate import data which allows a system admin to crash the server via the bulk import feature.
{
"versions": [
{
"introduced": "9.11.0"
},
{
"fixed": "9.11.18"
},
{
"introduced": "10.5.0"
},
{
"fixed": "10.5.9"
},
{
"introduced": "10.8.0"
},
{
"fixed": "10.8.4"
},
{
"introduced": "10.9.0"
},
{
"fixed": "10.9.4"
},
{
"introduced": "0"
},
{
"last_affected": "10.10.0-NA"
}
]
}