What occurs if a role denies an access right while another role allows it?

In Sitecore, the way access rights are handled follows a rules-based approach where the most restrictive setting takes precedence. When a role denies an access right, it effectively enforces restrictions that cannot be overridden by a role that allows the same access right. This means that if a user is assigned both a role that denies access and another that allows access, the denial will prevail.

This behavior ensures tighter security and control over access permissions, emphasizing that access control is based on the principle of least privilege, where the default state is to deny access unless explicitly allowed. Therefore, regardless of any role that may grant access, the denial from another role results in the overall permission being denied, thus providing a consistent and secure access management system within Sitecore.