CVE-2026-108891 [MEDIUM] – JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysUserContr

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysUserController getUserDetailByUserId handler that allows any authenticated user to read other users’ details. Low-privileged attackers can supply arbitrary userId values to retrieve real names, usernames, emails, phone numbers, birthdays, employee numbers, department paths and posts.