Nextcloud Server before 9.0.55 and 10.0.2 suffers from a bypass in the quota limitation. Due to not properly sanitizing values provided by the OC-Total-Length HTTP header an authenticated adversary may be able to exceed their configured user quota. Thus using more space than allowed by the administrator.
{
"cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
"source": "CPE_RANGE",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "9.0.55"
},
{
"introduced": "10.0.0"
},
{
"fixed": "10.0.2"
}
]
}