Vanessa (Zoe Lucker) will storm into Tanya's home and punch her, resulting in the pair fighting on the floor in front of Tanya's son Oscar and husband Greg.
The News of the World suggests that Tanya (Jo Joyner) will end the affair after Max's brother Jack (Scott Maslen) finds out. Max (Jake Wood) dumps Vanessa and confesses all, leading to the fight.
"She hunts Tanya down to her house and forces her way in before attacking her," a source said. "There is nothing like a woman scorned but Tanya doesn't take it lying down. She gives back as good as she gets. It leaves little Oscar in a right state."
However, the Daily Star Sunday claims that Vanessa only discovers the affair when Lauren (Jacqueline Jossa) decides she deserves to know the truth, following Max's promises that no-one else is involved in their split.
"Everyone remembers how Lauren exposed Max's affair with Stacey Slater - it was one of the soap's most dramatic episodes ever," another source said.
"So bosses decided it would be brilliant if she ruined her dad's love life all over again by telling Vanessa he's a cheat."
The scenes will air later this summer.