CVE-2026-108650 [MEDIUM] – JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the getUserPermi

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the getUserPermissionSet handler of SystemApiController that allows any authenticated user to read other users’ permission codes. Low-privileged attackers can supply an arbitrary userId to GET /sys/api/getUserPermissionSet to retrieve the full permission set of any account, including administrators.