War broke out between the TV stars when they left the TV Choice Awards worse-for-wear.
The Corrie star, 26, angrily wagged her finger at the glamorous grid girl, 28, as they had a major clash outside London’s swanky Hilton Park Lane Hotel while the television stars made their very boozy exits.
Katie looked seething as she took up the screaming match with Maura.
Love Island‘s Curtis later got involved when Katie turned her attention to him during the furious war of words following the end of the glamorous after-party.
The dancer placed a comforting hand on his love’s lower back in support after the explosive showdown which played out in the lobby as well as outside the hotel.
Love Island’s Chris Taylor also rushed to support his fellow co-star Maura while she had the blazing row in the street with the soap star.
It is not known why Katie and Maura locked horns after the very glam evening turned sour.
In stark contrast to their raging row, the pair were seen leaving the party hand-in-hand.
Katie and Maura seemed to show they were able to smooth out their differences when they were seen putting on a friendly display.
The Love Island bombshell put the difficulty behind her as she beamed from ear-to-ear, meanwhile the Coronation Street star appeared to be downcast.
The Mirror has approached representatives for Katie McGlynn and Maura Higgins for further comment.
Maura had the eyes of everyone over the night when she stole the show with her glittering semi-sheer gown.
The reality star flashed her legs in the soaring split of the dress cut to the top of her thigh and a racy slash across her chest exposed her cleavage.
Maura put on a cosy display with her beau Curtis Pritchard inside the extravagant affair which was packed with stars.
The amorous display seemingly silenced any rumours after she partied up a storm with newly-single Greg O’Shea while her beau left the evening.
Meanwhile, sources dished to The Mirror that her love rival Amy Hart had dodged the event to avoid an awkward run-in with Maura and Curtis.
A source told The Mirror: “She isn’t quite ready to be attending the same events as Curtis and Maura – as it’s a little bit awkward for her.
“She hasn’t seen him since the Love Island reunion and is in no rush to see him again anytime soon.”