brake booster question?

[RH62]

i see brake fluid coming out from around the gromet where the vacum line goes into the booster.
does this mean the booster is bad or the master cylinder is bad or both?

 

[69 Runner]

Means the master cylinder is bad. If you see fluid out the back of the booster then it's bad as well. Also, if the booster is bad, you'll know it cause you'll have a really bad vacuum leak lol

 

[RH62]

well a vacuum leak would explain some things.
thanks for the info!