Oregon Revised Statutes Domestic Relations § 107.005

(1) A marriage may be declared void from the beginning for any of the causes specified in ORS 106.020; and, whether so declared or not, shall be deemed and held to be void in any action, suit or proceeding in which the marriage may come into question.

(2) When either spouse claims or pretends that the marriage is void or voidable under the provisions of ORS 106.020, the marriage may at the suit of the other be declared valid or that the marriage was void from the beginning or that the marriage is void from the time of the judgment.

(3) A marriage once declared valid by the judgment of a court having jurisdiction thereof, in a suit for that purpose, cannot afterward be questioned for the same cause directly or otherwise.