Back fit after nursing their respective injuries, both Danny Barnes (hand) and Ian Nagle (shoulder) have been included in the province's extended panel.
Their 23-man matchday squad will be named on Thursday afternoon, with forwards coach Anthony Foley expecting a tough test from Cardiff.
"It's still early days. Cardiff's a tough place to go. They're a very good club, a very good side," he said.
"We've always found it hard to go over there and win. Last year was something of an unusual event in that we won over there. We're three from three. We'll go over there, do our best and see where it leaves us."
MUNSTER Squad (v Cardiff Blues) - Backs (11): Johne Murphy, Scott Deasy, Doug Howlett, Simon Zebo, Tom Gleeson, Danny Barnes, Lifeimi Mafi, Denis Hurley, Ian Keatley, Duncan Williams, Peter Stringer.
Forwards (15): Marcus Horan, Stephen Archer, BJ Botha, Wian du Preez, John Hayes, Denis Fogarty, Mike Sherry, Dave Foley, Ian Nagle, Mick O'Driscoll, Billy Holland, Peter O'Mahony, Niall Ronan, James Coughlan, Tommy O'Donnell.