Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that there was not reasonable evidence to determine the existence of a vulnerability.

An issue has been discovered in the permission and access control components within ROS2 Humble Hawksbill, in ROS_VERSION 2 and ROS_PYTHON_VERSION 3, allows attackers to execute arbitrary code, cause a denial of service (DoS), escalate privileges, and obtain sensitive information via the authentication system, including protocols, processes, and checks designed to verify the identities of users or devices attempting to access the ROS2 system.