Auth bypass in Jeecgboot
CVE-2026-5999
A vulnerability has been found in JeecgBoot up to 3.9.1. This impacts an unknown function of the component SysAnnouncementController. Such manipulation leads to improper authorization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor confirmed the issue and will provide a fix in the upcoming release.
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: 0.002 (10.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.1% 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: 0.002 · change: 0.000
Affected products
- Jeecgboot — versions 3.9.0, 3.9.1
Weakness classification (CWE)
References
- vuldb.com/vuln/356553 (vdb-entry)
- vuldb.com/vuln/356553/cti (signature, permissions-required)
- vuldb.com/submit/793656 (third-party-advisory)
- github.com/jeecgboot/JeecgBoot/issues/9508 (issue-tracking, exploit)
- github.com/jeecgboot/JeecgBoot/issues/9508 (issue-tracking)
- github.com/jeecgboot/JeecgBoot/ (product)
Frequently asked questions
- What is CVE-2026-5999?
- CVE-2026-5999 is a medium-severity vulnerability in Jeecgboot, classified under Incorrect Privilege Assignment. CVSS score: 6.3/10. Published 2026-04-10.
- How severe is CVE-2026-5999?
- Medium severity. CVSS v3 base score is 6.3 out of 10.