Auth bypass in Jeecgboot
CVE-2026-8196
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (37.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: -0.000
Affected products
- Jeecgboot — versions 3.9.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/vuln/362348 (vdb-entry)
- vuldb.com/vuln/362348/cti (signature, permissions-required)
- vuldb.com/submit/803529 (third-party-advisory)
- github.com/xpp3901/CVE_APPLY/tree/main/V-009_mLogin_Captcha_Bypass (exploit)
Frequently asked questions
- What is CVE-2026-8196?
- CVE-2026-8196 is a low-severity vulnerability in Jeecgboot, classified under Improper Authorization. CVSS score: 3.7/10. Published 2026-05-09.
- How severe is CVE-2026-8196?
- Low severity. CVSS v3 base score is 3.7 out of 10.
- Is CVE-2026-8196 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.