{"id":"CVE-2026-108637","revision":"d13b394cec254abcb8d21294816e7a75","records":[{"revision":"d13b394cec254abcb8d21294816e7a75","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-108637","aliases":[],"title":"JeecgBoot through 3.9.5 Missing Authorization via deleteUserGroupBatch Endpoint","description":"JeecgBoot through 3.9.5 contains a missing authorization vulnerability that allows low-privileged authenticated users to remove user group members by calling DELETE /sys/user/deleteUserGroupBatch. Attackers can supply any groupId and comma-separated userIds to delete sys_ugroup_user rows without permission or tenant checks, tampering with administrator-maintained groups.","state":0,"publishedAt":"2026-10-10T21:49:29.917+00:00","modifiedAt":"2026-10-18T12:03:17.202+00:00","affected":[{"ecosystem":"Vendor product","name":"JeecgBoot","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"jeecgboot\",\n                    \"product\": \"JeecgBoot\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"3.9.5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:github/jeecgboot/JeecgBoot\",\n                    \"repo\": \"https://github.com/jeecgboot/JeecgBoot\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":5.3,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","score":4.3,"severity":"MEDIUM"}],"references":["https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_user_group_member_removal_batch.py","https://github.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe1943d9772b026f64ed671a7c82802/jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/system/controller/SysUserController.java#L851-L866","https://www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-deleteusergroupbatch-endpoint"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-108637","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-108637","identifiers":["CVE-2026-108637"]},"retained":false,"historicalAffected":[]}],"coverage":[]}