Stevenage's search for a first home league victory of the season continues after David Amoo's late strike helped make it two wins in a row for Carlisle under caretaker boss Graham Kavanagh.
Carlisle skipper Lee Miller stabbed home a rebound to open the scoring.
The home side drew level through Greg Tansey's penalty after Troy Archibald-Henville's foul on Luke Freeman.
Matty Robson fired home a left-footed drive for 2-1 before Amoo struck with five minutes to go to seal victory.
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