CVE-2026-108661CWE-862broken-access-control

CVE-2026-108661

Medium · published October 11, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
11.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS
0.00213 · 11.1th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-10-11T02:16Z
References (3)
https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_tenant_change_owner.py · [email protected]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 · [email protected]https://www.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-sys-tenant-changeowenusertenant · [email protected]
EPSS history
Timeline
  • 12 OCT 03:26Z
    EPSS moved — → 0%
    epss
  • 10 OCT 21:49Z
    JeecgBoot through 3.9.5 Missing Authorization via /sys/tenant/changeOwenUserTenant
    cvelistv5
  • 10 OCT 21:49Z
    JeecgBoot through 3.9.5 Missing Authorization via /sys/tenant/changeOwenUserTenant
    cvelistv5