The salad's Dutch manufacturer Johma Salades told Aldi that “a contamination of the product with salmonella could not be ruled out,” daily newspaper Bild reported.
The salmon salad has since been taken off Aldi shelves. Customers who bought the 150-gram packages were told to return them to a store for their money back.
The salad was sold "in different regions of Lower Saxony and Bremen," according to the Aldi website.
The discounter said other products were not affected.
Those particularly at risk from the salmonella bacteria are pregnant women, children, the elderly and those with weakened immune systems.