A "Gospel of Judas" is mentioned by Irenaeus (Adv. Haer., i.31), Epiphanius (Haer., xxxviii.1), Theodoret, etc., as current in the Gnostic sect of the Cainites, to whom Judas was a hero. It must have been in existence in the 2nd century, but no quotation is given from it (see Baring-Gould, Lost and Hostile Gospels, III, chapter v).
The International Standard Bible Encyclopedia
Judas Iscariot, Gospel of
The International Standard Bible Encyclopedia, James Orr (1915). Public domain, from the CrossWire SWORD module.