Alerrando missed a first-half penalty for the visitors and then the game sparked into life with two goals in a minute shortly after the break.
Vinicius Paiva gave Vasco the lead after 50 minutes, only for Lucas Evangelista to equalise a minute later with a splendidly-placed shot through a crowded box.
The point takes Vasco on to 18 points from 11 games, the same as Palmeiras, who have played a game fewer. Bragantino are fourth bottom of the 20-team league with 11 points from 12 games.
(Reporting by Andrew Downie Editing by Toby Davis)