| Package | Affected versions | Patched versions |
|---|---|---|
| org.apache.hadoop:hadoop-client | < 2.7.0 | 2.7.0 |
| hadoop | ≤ 2.6.5 |
HDFS clients interact with a servlet on the DataNode to browse the HDFS namespace. The NameNode is provided as a query parameter that is not validated in Apache Hadoop before 2.7.0.
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