FIFA president Gianni Infantino believes football's world governing body must make the World Cup bidding process "bullet-proof."
The 45-year-old, elected FIFA's new chief last week, wants future competitions to be clear of corruption allegations.
A report into the 2006 World Cup corruption allegations has concluded a payment of €6.7 million from the German football federation (DFB) to world governing body FIFA in April 2005 cannot be ruled out.
The award of the 2018 and 2022 tournaments to Russia and Qatar have also been tainted by allegations of corruption and Infantino -- who wants to start the 2026 process within three months -- insisted FIFA must ensure it does not continue during future bids.