Missing Authorization Vulnerability in JeecgBoot Revealing User Role Information
CVE-2026-108678

5.3MEDIUM

Key Information:

Vendor

Jeecgboot

Status
Jeecgboot
Vendor
CVE Published:
10 October 2026

Badges

👾 Exploit Exists

What is CVE-2026-108678?

JeecgBoot versions up to 3.9.5 are impacted by a vulnerability in the queryUserRoles handler of the SystemApiController, which fails to properly authorize requests. This flaw allows authenticated users with low privileges to send GET requests to the /sys/api/queryUserRoles endpoint. By specifying an arbitrary username, attackers can enumerate user role assignments and potentially expose sensitive role information, including administrator accounts. This vulnerability poses significant risks by making it easier for malicious actors to identify and target high-privilege users.

Affected Version(s)

JeecgBoot 0 <= 3.9.5

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
.