The pace bowler has secured 309 wickets in 71 appearances with an impressive average.
Australia's selection chief the selector has confirmed that skipper Cummins will play a "major part" in the upcoming historic rivalry.
Rumors had circulated that Cummins might miss the series due to a persistent back stress problem that remained unresolved.
Earlier indications from the squad suggested no final decision had been made regarding his involvement, with the five-Test series set to start on November 21 in the WACA.
The selector shared that his recovery is on track and was "optimistic" about the prospects of taking part.
"We're aware that the window is narrowing and various factors involved, aside from the back issue, but further aspects," the selector added.
"It's positive. [We are] really confident that he's going to play a significant role. With luck starting in Perth. Should that not happen, we'll reassess."
Past Concerns
The captain missed Australia's limited-overs series against India and New Zealand recently after scans revealed a lower back issue.
There is a track record of back injuries, with setbacks in multiple past seasons causing him to miss multiple domestic campaigns in a limited period.
The bowler mentioned he would be ""aggressive" and "take risks" in his rehabilitation process to ensure his availability for the series.
The selector indicated that it was unclear if he had started his bowling workouts as part of his rehabilitation but conceded it was "getting tight" for him to regain fitness for the initial match.
Alternative Arrangements
In case of absence, former captain Steve Smith will assume leadership.
All-rounder Cameron Green was excluded lately from Australia's squad for their one-day international series against India as a preventive step because of discomfort in his torso.
He labeled it as a "minor" injury and stated that he'll feature in the state-level matches, so will be "well-prepared to resume bowling."
"Extensive planning has gone into building out the plan for him to take part for the first Test as an batting and bowling option," he elaborated.
"Originally, he'd only feature in the starting games anyway. His aggressive style the cricket bat in white-ball cricket, if it causes any delay for a short period, the choice was made to approach this more conservatively."
Series Schedule
Australia vs England: The Ashes
Spanning from late 2025 to early 2026
