There's a rewrite of pass in Go[1] (because of course there is) that advertises multi user password management as a feature. It uses the same on disk format as pass, so it's compatible with all the addons and browser plugins that pass uses. It's been discussed here previously [2,3].
It is just plain text encrypted files in a GIT repo, so no reason why multiple people couldn't use it, I don't think there would be the ability to have segregation of folders for different people without some tweaks though.
[1] https://www.justwatch.com/gopass/ [2] https://news.ycombinator.com/item?id=13551692 [3] https://news.ycombinator.com/item?id=15864322