Harris, 24, was signed in the summer from Evo-Stik League South Premier side Hereford FC but has found his playing time limited in the squad and he has now left the Tigers.
Harris joined the Bulls from Cinderford Town, whom he helped win the Evo-Stik League South West in 2015/16.
An ever-present during Cinderford’s title-winning campaign, he kept a league record twenty-four clean sheets throughout that season.