Cpanel, L.l.c. - Cpanel & Whm - CRITICAL - CVE-2026-41940. The affected versions of cPanel and WHM contain a serious authentication bypass flaw in the login flow. This vulnerability enables unauthenticated remote attackers to bypass authentication mechanisms, allowing them to gain unauthorized access to the control panel. Users of the specified versions are highly encouraged to update to the latest versions to mitigate the risks posed by this vulnerability. Regularly updating cPanel and WHM is essential for maintaining system security and protecting sensitive data.