Missing Authorization in JeecgBoot Affects User Role Management
CVE-2026-108640

5.3MEDIUM

Key Information:

Vendor

Jeecgboot

Status
Jeecgboot
Vendor
CVE Published:
10 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-108640?

JeecgBoot, up to version 3.9.5, contains a vulnerability in the SysDepartRoleController specifically within the queryById handler. This issue arises due to the absence of necessary Shiro permission annotations, allowing low-privileged authenticated attackers to exploit the vulnerability. These attackers can send GET requests to /sys/sysDepartRole/queryById with arbitrary IDs, gaining unauthorized access to sensitive information such as department role names, codes, descriptions, and audit details.

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-2026-108640 - 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
.