This question can be two-fold. Is CBD itself addictive? Can CBD assist with addiction to other substances? CBD (cannabidiol) is NOT addictive. This is based on sound chemistry. There are not any withdrawal symptoms either when CBD has been ceased.
Americans, however seem to find ways to be “addicted” to just about anything. Sex, exercise, food, caffeine, are just a tip of the iceberg.
There is ongoing research with CBD and its ability to lessen addictive syptoms of other substances, such as alcohol, heroin, cocaine, opiated, benzodiazepines and other such substances. More research is needed but thus far it is looking promising.