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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| org.apache.hadoop:hadoop-main(Maven) | 3.0.0-alpha2 | 3.0.1 | N/A |
| org.apache.hadoop:hadoop-main(Maven) | 2.9.0 | 2.9.3 | N/A |
| org.apache.hadoop:hadoop-main(Maven) | 2.8.0 | 2.8.6 | N/A |
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