Language: Go
Label: vulnerable
CWE: CWE-366 \u2014 Race Condition within a Thread
If two threads of execution use a resource simultaneously, there exists the possibility that resources may be used while invalid, in turn making the state of execution undefined.

Code:
func NewAnswerActivityService(
	answerActivityRepo AnswerActivityRepo, questionActivityRepo QuestionActivityRepo) *AnswerActivityService {
	return &AnswerActivityService{
		answerActivityRepo:   answerActivityRepo,
		questionActivityRepo: questionActivityRepo,
	}
}