CMF2

• Corey Taylor – vocals, guitar, mandolin on "The Box", spoken word on "Talk Sick", keyboards, theremin on "Starmate" and "Punchline"
• Christian Martucci – guitar, backing vocals
• Zach Throne – guitar, backing vocals
• Dustin Robert – drums, percussion, vocals
• Eliot Lorango – bass

• Mariko Muranaka – cello on "The Box", "Midnight", "Sorry Me"
• Fred Mandel – hammond organ on "Breath of Fresh Smoke"
• Walter Bäcklin – additional keyboards, programming on "Beyond", "Midnight", "Punchline" and "Dead Flies"
• Roger Manning – keyboards on "We Are the Rest", "Midnight", "Starmate"
• Rah Satya – assistant
• Sarah Pardini – cover design, photography
• Zoe Thrall – studio manager

• Jay Ruston – production, mixing, audio engineer
• Tristan Hardin – audio engineer
• Paul Logus – mastering
• Paul Bassett – drum technician

On May 17, 2024, Corey Taylor released CMF2B... or Not 2B, the B-side of CMF2. It included four unreleased B-side tracks and eight cover tracks, including covers of his own bands Stone Sour and Slipknot.