Nix through 2.3 allows local users to gain access to an arbitrary user's account because the parent directory of the user-profile directories is world writable.
{
"cpe": "cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "2.3"
}
],
"source": "CPE_RANGE"
}