---
id: CVE-2026-108649
title: >-
  JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the
  queryUserRolesById handler of SystemApiController that lets authenticated
  users read any user's role codes
summary: >-
  JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the
  queryUserRolesById handler of SystemApiController that lets authenticated
  users read any user's role codes. Low-privileged attackers can send a userId
  to GET /…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-862
published: '2026-10-10'
updated: '2026-10-10'
sourceUpdated: '2026-10-10T22:16:40.743'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-108649'
references:
  - url: >-
      https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_sys_api_user_roles_by_id.py
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe1943d9772b026f64ed671a7c82802/jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/api/controller/SystemApiController.java#L482-L485
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-sys-api-queryuserrolesbyid
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-10T22:34:13.264Z'
---

## Overview

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the queryUserRolesById handler of SystemApiController that lets authenticated users read any user's role codes. Low-privileged attackers can send a userId to GET /sys/api/queryUserRolesById to enumerate role assignments and identify administrator accounts.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.