CVE-2026-8196 Details
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.
An authorization bypass vulnerability has been identified in JeecgBoot version 3.9.1, specifically within the mobile login endpoint. The issue arises in the LoginController.java file, where the mLogin endpoint fails to validate captcha requirements, allowing for unauthorized access. This vulnerability can be exploited remotely and is considered to have high complexity, making it difficult to execute. The flaw has been publicly disclosed and could potentially be exploited in the wild.
To address this vulnerability, it is recommended to add captcha verification to the mobile login endpoint, implement rate limiting and account lockout mechanisms, and consider restricting the endpoint's use via API key or app signature validation.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 9, 2026CISA-ADP
Assessed May 11, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/xpp3901/CVE_APPLY/tree/main/V-009_mLogin_Captcha_Bypass | [email protected] | ExploitTechnical Analysis |
| https://vuldb.com/submit/803529 | [email protected] | Permission Required |
| https://vuldb.com/vuln/362348 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/vuln/362348/cti | [email protected] | AdvisoryPermission Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-285 | Improper Authorization | [email protected] |
| CWE-639 | Authorization Bypass Through User-Controlled Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| JeecgBoot | <v3.9.1 (semver) |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 9, 2026 | New CVE Received | [email protected] |