Web endpoint authentication check is broken in Apache Hadoop 3.0.0-alpha4, 3.0.0-beta1, and 3.0.0. Authenticated users may impersonate any user even if no proxy user is configured.
[
{
"product": "Apache Hadoop",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Apache Hadoop 3.0.0-alpha4, 3.0.0-beta1, 3.0.0"
}
]
}
]