A representative of Foster, 51, has confirmed that the 'Panic Room' star exchanged vows with Hedison in a low-key ceremony yesterday, reported People magazine.
The couple had been dating for about a year.
Foster has been a private person but she opened up a bit about her personal life when giving an acceptance speech at the 2013 Golden Globes.
Before Hedison, Foster was in a longterm relationship with Cydney Bernard.
The couple, who separated in 2008, co-parented two sons, Charles and Kit. Hadison previously dated Ellen DeGeneres for three years.