CVE-2026-8196 JeecgBoot mLogin Endpoint LoginController.java authorization

Medium 6.3 Published Updated

Remote attackers can bypass authorization in the JeecgBoot mLogin endpoint, potentially gaining unauthorized access to system functions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-8196?

CVE-2026-8196 is a medium-severity authentication bypass vulnerability in JeecgBoot, published on 9 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-639, CWE-285

Which versions are affected by CVE-2026-8196?

How do I fix CVE-2026-8196?

No fix has been published for CVE-2026-8196 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-8196 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8196 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-vvv6-fxhr-fx5v.

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