Sometimes, Gatekeeper may block the ColdFusion installer launch on macOS (e.g., macOS 15.4.1), which means macOS is preventing ColdFusion from using the bundled Java due to security restrictions. One might see the following error:

Allowing Java in Privacy & Security under the System Settings may not help, and you may have to bypass Gatekeeper and run the ColdFusion installer manually. You can remove Gatekeeper’s quarantine flag using the following command:

sudo xattr -r -d com.apple.quarantine ‘ColdFusion 2025 Installer.app’

This removes the quarantine flag that Gatekeeper applies when an app is downloaded from the internet. Ensure that the ‘ColdFusion 2025 Installer.app’ is located in a writable directory, such as ~/Downloads or /Desktop.