Is CVE-2026-108886 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-108886 being exploited in the wild.

How severe is CVE-2026-108886?

Medium severity, with a CVSS score of 4.3, published 11 October 2026.

Is there a fix for CVE-2026-108886?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-108886 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-108886?

Check whether you run JeecgBoot at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-108886: JeecgBoot authorization bypass in SysUserController

CVE-2026-108886 · Severity: medium · CVSS 4.3 · Published 2026-10-11

JeecgBoot is an open-source enterprise application framework for rapidly building business systems. A missing authorization check in the queryChildrenByUsername handler allows any authenticated user to retrieve personal information about other employees, including names, emails, phone numbers, employee IDs, and department rosters. An attacker with basic login credentials can systematically extract employee directories and contact details without proper authorization.

Technologies: JeecgBoot. Vendors: JeecgBoot.

Quick answers

Is CVE-2026-108886 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-108886 being exploited in the wild.
How severe is CVE-2026-108886?: Medium severity, with a CVSS score of 4.3, published 11 October 2026.
Which products and versions are affected?: JeecgBoot through 3.9.5.
Is there a fix for CVE-2026-108886?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-108886 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-108886?: Check whether you run JeecgBoot at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The SysUserController.queryChildrenByUsername endpoint fails to perform authorization checks before returning user records via an arbitrary userId parameter. An authenticated attacker can supply any userId value to retrieve the target user's personal data (realname, email, phone, work_no, depart_ids, etc.) and, if that user is a department head, the complete roster of their department. The handler applies only authentication (JWT validation) but no functional authorization, allowing lateral information disclosure across the user base.

Affected products

JeecgBoot JeecgBoot through 3.9.5

Timeline

2026-10-11: disclosed

References

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