That would be Pope St. Pius X’s encyclical Pascendi Domenici Gregis (8/1907) and his syllabus of errors: Lamentabili Sane (7/1907). In Church terms thee are relatively recent documents and well worth reading.
Unfortunately, none of the clergy, theologians, or apologists read these documents, and if they do they "reinterpret" them.
But my point is that the Orthodox Church doesn't have any such position. I don't even know if they've ever formally accepted a "canon."