Missing Authorization Vulnerability in JeecgBoot System API
CVE-2026-108867

5.3MEDIUM

Key Information:

Vendor

Jeecgboot

Status
Jeecgboot
Vendor
CVE Published:
11 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-108867?

JeecgBoot, up to version 3.9.5, has a flaw in the SystemApiController's getUserRoleSetById function, which permits any authenticated user to access other users' role assignments without proper authorization. This issue arises from improper access controls, allowing low-privileged users to supply arbitrary userId parameters and retrieve associated role codes, exposing sensitive information such as administrator account identifiers. Consequently, unauthorized users can exploit this vulnerability to gain visibility into the system's role assignments, potentially facilitating further attacks within the application.

Affected Version(s)

JeecgBoot 0 <= 3.9.5

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-108867 - Proof of Concept

References

https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1...
exploit
https://github.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe19...
technical-description
https://www.vulncheck.com/advisories/jeecgboot-through-3....
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yaqi Chao
.