Authorization Bypass in JeecgBoot LoginController

Publication date: 2026-05-09

Last updated on: 2026-05-11

Assigner: VulDB

Description

A flaw has been found in JeecgBoot 3.9.1. The impacted element is an unknown function of the file jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/system/controller/LoginController.java of the component mLogin Endpoint. This manipulation causes authorization bypass. The attack is possible to be carried out remotely. The attack is considered to have high complexity. The exploitability is regarded as difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-05-09

Last Modified

2026-05-11

Generated

2026-07-09

AI Q&A

2026-05-10

EPSS Evaluated

2026-07-08

NVD

CVE-2026-8196

Affected Vendors & Products

Vendor	Product	Version / Range
jeecg	jeecgboot	3.9.1

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-285	The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
CWE-639	The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

Executive Summary

This vulnerability is a flaw found in JeecgBoot version 3.9.1, specifically in an unknown function within the LoginController.java file of the mLogin Endpoint component. It allows an attacker to bypass authorization controls.

The attack can be performed remotely but is considered to have high complexity and difficult exploitability. Despite this, an exploit has been published and may be used.

Impact Analysis

This vulnerability can allow unauthorized users to bypass authorization mechanisms, potentially gaining access to restricted parts of the system without proper permissions.

Such unauthorized access could lead to exposure of sensitive information or unauthorized actions within the affected application.

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