CVE-2026-108657 [HIGH] – JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysTenantCon

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysTenantController passApply handler that allows any authenticated user to approve tenant administrator applications. Attackers can file a pending application via doApplyTenantPackUser and approve it through PUT /sys/tenant/passApply to gain tenant administrator pack permissions in any tenant.