In Apache Spark 1.0.0 to 2.1.2, 2.2.0 to 2.2.1, and 2.3.0, when using PySpark or SparkR, it's possible for a different local user to connect to the Spark application and impersonate the user running the Spark application.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "2.1.2"
},
{
"introduced": "2.2.0"
},
{
"last_affected": "2.2.1"
},
{
"introduced": "0"
},
{
"last_affected": "2.3.0"
}
]
}