The 'RHONJ' star just filed against the network -- plus a ton of other production companies/studios involved in making 'Housewives' -- over an incident she claims took place in Jan. 2023 out in Morocco ... where she says they were attempting to film for a show called "Real Housewives Ultimate Girls Trip."

Long story short, this is a mish-mash of 'Housewives' from different shows -- and they get them all together for a season of drama while Bravo and co. films them vacationing.

However ... in the docs, obtained by TMZ, Caroline alleges that things went too far between herself and Brandi ('RHOBH') one evening -- during which she claims she was sexually harassed by BG after producers supplied castmates with alcohol to promote more outrageous behavior for the show.

Basically, CM claims Brandi was coming on to her in their rental house -- and alleges she even forced herself onto Caroline and kissed her without consent ... going on to claim that Brandi continued to paw at her and "mount" her on a couch, making for a very awkward interaction.

While Caroline most certainly has issues with what she claims Brandi did in the moment -- she's not suing her in this suit ... instead, she's suing Bravo -- alleging that showrunners and producers were responsible for creating/fostering a drunken environment that puts cast members at risk for things like this to happen.

In fact, Brandi came out after the fact -- this season hasn't aired yet BTW -- saying, more or less, the same thing on Twitter ... pinning the whole thing on producers and alleging that they really push for this type of over-the-top behavior to stir up drama in hopes of ratings.

Brandi -- who's been part of other 'Girls Trip' seasons for Bravo -- even claimed online a while back that producers strongly encouraged cast members to get drunk with excessive alcohol -- and Caroline, too, alleges that in her lawsuit here. She also describes what allegedly happened between her and Brandi as triggering trauma she says she experienced as a little girl ... when she says she was sexually assaulted at the young age of 7.

Now, she's suing Bravo for negligence, sexual harassment, intentional infliction of emotional distress and more. Of course, Caroline is seeking major damages here.