In Apache Hadoop versions 2.6.1 to 2.6.5, 2.7.0 to 2.7.3, and 3.0.0-alpha1, if a file in an encryption zone with access permissions that make it world readable is localized via YARN's localization mechanism, that file will be stored in a world-readable location and can be shared freely with any application that requests to localize that file.

In Apache Hadoop 2.6.x before 2.6.5 and 2.7.x before 2.7.3, a remote user who can authenticate with the HDFS NameNode can possibly run arbitrary commands with the same privileges as the HDFS service.

The Hadoop connector 1.1.1, 2.4, 2.5, and 2.7.0-0 before 2.7.0-3 for IBM Spectrum Scale and General Parallel File System (GPFS) allows local users to read or write to arbitrary GPFS data via unspecified vectors.