In Apache Hadoop versions 3.0.0-alpha2 to 3.0.0, 2.9.0 to 2.9.2, 2.8.0 to 2.8.5, any users can access some servlets without authentication when Kerberos authentication is enabled and SPNEGO through HTTP is not enabled.
[
{
"product": "Apache Hadoop",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Apache Hadoop 3.0.0-alpha2 to 3.0.0, 2.9.0 to 2.9.2, 2.8.0 to 2.8.5"
}
]
}
]
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security.netapp.com/advisory/ntap-20201016-0005/