In 2006 Parvanov admitted that before 1989 there was a file on him at the Communist Security Service (Darzhavna Sigurnost, or DS) under the nickname "Gotse" (for the revolutionary Gotse Delchev) for his scientific assistance on Macedonian topics.
The report of the Special Commission of the United Nations into the misconducts of the Iraqi "Oil for food" suggests that in 1998 Saddam Hussein took bribes from the Bulgarian Socialist Party, then led by Parvanov and companies close to the party.