Skip to content
OpenAdvisories
Medium · 4.3 CVE-2026-108638 EUVD-2026-96577GHSA-mjcw-r5vv-4wqh

JeecgBoot through 3.9.5 Missing Authorization via /sys/user/deleteGroupUser

Published Oct 10, 2026 · Updated Oct 14, 2026 · Assigned by VulnCheck

Description

JeecgBoot through 3.9.5 contains a missing authorization vulnerability that allows low-privileged authenticated users to remove group memberships via the deleteGroupUser handler in SysUserController. Attackers can send DELETE requests with arbitrary groupId and userId values to remove any user from any administrator-maintained user group without ownership or tenant checks.

Affected products

VendorProductAffectedFixed
jeecgboot JeecgBoot ≤ 3.9.5 —

References