CVE-2026-108676 [MEDIUM] – JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysAnnouncem

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysAnnouncementController downLoadFiles handler that allows low-privileged authenticated users to download announcement attachments. Attackers can supply a known announcement id to retrieve a ZIP of attachments from unreleased announcements or those addressed only to other users.