The Stade Francais prop suffered multiple fractures of his right foot and will miss the Top 14 run in for his club side.
Even more frustrating for Attoub will be the fact that his chances of touring New Zealand this summer with Les Bleus are now in real jeopardy.
Philippe Saint-Andre's side are taking on the All Blacks in three tests in June and after being overlooked for this year's RBS 6 Nations Attoub will have hoped to have been involved.
But the prop remains upbeat, tweeting that expects to return to action "around the end of may or the start of June."
Attoub himself is no stranger to spells on the sidelines, a spinal injury back in 2006 kept him out of the game for seven months and left him nearly paralysed.