Saudi Arabia will be represented at the meeting by Defence Minister Prince Khalid bin Salman, the reports said.
The meeting would mark the first engagement between senior officials from the three countries and Iranian leadership since an increase in attacks on Saudi Arabia by Yemen’s Iran-aligned Houthi rebels.
Earlier this month, defence ministers from the pact’s member states held an emergency meeting in Riyadh, where they agreed to ensure the swift deployment of military personnel and defence capabilities to Saudi Arabia.
Saudi Arabia’s government media office and Pakistan’s Inter-Services Public Relations (ISPR) have declined to comment on the reported meeting.