Privilege escalation in Jeecgboot
CVE-2026-9579
A vulnerability was found in JeecgBoot up to 3.9.1. Impacted is the function user.getUsername of the file /sys/user/login/setting/userEdit of the component SysUser. The manipulation of the argument userIdentity results in improper access controls. The attack may be launched remotely. The exploit has been made public and could be used. Upgrading to version 3.9.2 is recommended to address this issue. The affected component should be upgraded.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (27.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
- Jeecgboot — versions 3.9.0, 3.9.1, 3.9.2
Weakness classification (CWE)
References
- vuldb.com/vuln/365635 (technical-description, vdb-entry)
- vuldb.com/vuln/365635/cti (signature, permissions-required)
- vuldb.com/submit/817891 (third-party-advisory)
- github.com/jeecgboot/JeecgBoot/issues/9596 (issue-tracking, exploit)
- github.com/jeecgboot/JeecgBoot/issues/9596 (issue-tracking)
- github.com/jeecgboot/JeecgBoot/releases/tag/v3.9.2 (patch)
- github.com/jeecgboot/JeecgBoot/ (product)
Frequently asked questions
- What is CVE-2026-9579?
- CVE-2026-9579 is a medium-severity vulnerability in Jeecgboot, classified under Incorrect Privilege Assignment. CVSS score: 6.3/10. Published 2026-05-26.
- How severe is CVE-2026-9579?
- Medium severity. CVSS v3 base score is 6.3 out of 10.