About 60 days.
Some Fridge Storing Tips
Fresh cranberries will last for up to two months in a tightly sealed plastic bag in the fridge. The same rule of storage basically applies to all berries, if one starts getting soft and squishy, the rest will follow shortly.
If they are wet when removed from the fridge that’s fine. If you notice discoloration or if the cranberries feel sticky or tough, then they are not good anymore and should be tossed away.
Cooked cranberries can last up to 30 days in a covered container in the fridge. Frozen cranberries will keep up to one year in the freezer.
Hope this helps.