Auth bypass in Wxiaoqi Spring-Cloud-Platform
CVE-2026-90594
A vulnerability was identified in wxiaoqi Spring-Cloud-Platform 3.0.1/3.1.0. This vulnerability affects the function PermissionService.checkUserPermission of the file /rpc/service/PermissionService.java of the component Permission Service. The manipulation leads to missing authorization. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Broken Access Control
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 (30.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Wxiaoqi Spring-Cloud-Platform — versions 3.0.1, 3.1.0
Weakness classification (CWE)
References
- vuldb.com/vuln/403176 (technical-description, vdb-entry)
- vuldb.com/vuln/403176/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-90594 (third-party-advisory)
- vuldb.com/submit/913788 (third-party-advisory)
- github.com/wxiaoqi/Spring-Cloud-Platform/issues/64 (issue-tracking)
- github.com/user-attachments/files/30627348/poc_vuln1_failopen_authz.zip (exploit)
- github.com/wxiaoqi/Spring-Cloud-Platform/ (product)
Frequently asked questions
- What is CVE-2026-90594?
- CVE-2026-90594 is a medium-severity vulnerability in Wxiaoqi Spring-Cloud-Platform, classified under Missing Authorization. CVSS score: 6.3/10. Published 2026-09-13.
- How severe is CVE-2026-90594?
- Medium severity. CVSS v3 base score is 6.3 out of 10.