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CVE-2026-108886

4.3 · MEDIUM

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysUserController queryChildrenByUsername handler that allows any authenticated user to retrieve other users' account r…

Published Oct 11, 2026CWE-862EPSS 0.19%

Overview

CVE-2026-108886 is a medium-severity vulnerability. It was published on October 11, 2026 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

JeecgBoot through 3.9.5 contains a missing authorization vulnerability in the SysUserController queryChildrenByUsername handler that allows any authenticated user to retrieve other users' account records. Low-privileged attackers can supply arbitrary userId values to obtain names, emails, phone numbers, employee numbers, department assignments, and staff lists of departments those users head.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/JeecgBoot/poc_sys_user_children_by_username.pyGitHubgithub.com/jeecgboot/JeecgBoot/blob/e3b9dc0aefe1943d9772b026f64ed671a7c82802/jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/system/controller/SysUserController.java#L1642-L1660Refwww.vulncheck.com/advisories/jeecgboot-through-3.9.5-missing-authorization-via-sys-user-querychildrenbyusername

How CyberStrike helps

Frequently asked questions

What is CVE-2026-108886?

CVE-2026-108886 is a medium-severity vulnerability. It was published on October 11, 2026 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-108886?

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-108886?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-108886?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-108886 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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