Taking a minor child out of the country

We have full custody of my husbands son and we live in NY, his birth mother lives in TX. She has him in the summers and this summer she stated to our son that he needs to bring his passport because she is surprising him with a trip. She has not contacted my husband to talk about this so we have no idea where she is taking him or for how long.

What are our rights here?

You have none. Your husband, on the other hand, has the right to withhold his permission and the childs passport, barring a court order to the contrary.

I know I dont have rights. I just wanted to know what his options were. There is no court order stating she can take him out of the country and I wasnt sure about whether she needed his permission and the childs passport that we purchased.

Thanks for the response. I will let him know.