The duo used to be good friends and starred in a number of campaigns together, but it seems Cara’s managed to get on the wrong side of Mossy.
According to The Sun, Kate wasn’t happy when Cara decided to focus on acting, and left Storm Models - who also represent Kate - to sign with an American acting agency.
To make matters worse, Kate’s also apparently not pleased by Cara’s rumoured spat with Naomi Campbell, even though Naomi denied that it ever took place.
“Kate wasn’t happy with Cara’s clash with Naomi and felt she should have treated her with more respect,” the source added. “Kate is also unhappy with Cara about ditching Storm. Kate has remained loyal to Storm throughout her career and thought Cara should, too.
“It’s not that Kate disagrees with Cara wanting to be a movie star — she was always incredibly supportive and positive about that — but she’s annoyed with some of Cara’s behaviour.”
The rift comes just two months after the pair were revealed as the faces of Mango's Autumn-Winter 2016 campaign:
Kate’s had a tough month, and it was recently revealed that she’s split from her husband Jamie Hince.
It’s believed that the couple are ready to start divorce proceedings, and they haven’t been pictured together in months.
Back in June, the model hit headlines for an unusual reason, after reportedly becoming disruptive on an EasyJet flight, and calling the pilot a “basic bitch”.
Kate was was met by police at Luton airport and escorted off the plane.