CVE-2026-108654 [MEDIUM] – JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the OssFileContr

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the OssFileController queryById handler that allows low-privileged authenticated users to read object storage file records. Attackers who know a record id can request GET /sys/oss/file/queryById to obtain original file names and direct storage URLs of files uploaded by other users.