1. Vulnerability Description

• If a variable with the same name declared outside is used inside a function, the code readability is degraded and unintended results may occur.

2. Vulnerability Countermeasure

• Do not use Variable shadowing.

3. Sample Code

• Vulnerable Code

Class Test {
  def foo = {
    val a = 1
    def boo = {
      val a = 2
      println(a)
    }
  }
}