---
id: CVE-2026-108661
title: >-
  JeecgBoot through 3.9.5 contains a missing authorization vulnerability that
  allows any authenticated user to transfer tenant ownership via POST
  /sys/tenant/changeOwenUserTenant
summary: >-
  JeecgBoot through 3.9.5 contains a missing authorization vulnerability that
  allows any authenticated user to transfer tenant ownership via POST
  /sys/tenant/changeOwenUserTenant. Low-privileged attackers can supply userId
  and tenantId par…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-862
published: '2026-10-10'
updated: '2026-10-10'
sourceUpdated: '2026-10-10T22:16:42.493'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-108661'
references:
  - url: >-
      https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_tenant_change_owner.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/system/controller/SysTenantController.java#L726-L731
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-sys-tenant-changeowenusertenant
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-10T22:34:13.268Z'
---

## Overview

JeecgBoot through 3.9.5 contains a missing authorization vulnerability that allows any authenticated user to transfer tenant ownership via POST /sys/tenant/changeOwenUserTenant. Low-privileged attackers can supply userId and tenantId parameters to reassign any tenant's owner to a member, including themselves, and strip the legitimate owner.

## Remediation

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