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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| org.apache.hadoop:hadoop-main(Maven) | 3.0.0-alpha4 | 3.0.1 | N/A |
| org.apache.hadoop:hadoop-main(Maven) | 3.0.0-beta1 | 3.0.1 | N/A |
| org.apache.hadoop:hadoop-main(Maven) | 3.0.0 | 3.0.1 | N/A |
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