Auth bypass in Youlaitech Youlai-Boot
CVE-2026-110215
youlai-boot through 2.21.1 contains a missing authorization vulnerability that allows authenticated users to assign arbitrary menu and button permissions to roles via PUT /api/v1/roles/{roleId}/menus. Low-privileged users such as the GUEST test account can grant all permissions to their own role, refreshing the Redis permission cache to gain administrator-equivalent access.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/youlai-boot-role-menu-assignment-and-user-sta… (third-party-advisory)
- github.com/youlaitech/youlai-boot/blob/v2.21.1/src/main/java/com/youlai/boot/sy… (technical-description)
- github.com/youlaitech/youlai-boot/blob/v2.21.1/src/main/java/com/youlai/boot/sy… (technical-description)
- github.com/youlaitech/youlai-boot/commit/36d2db6dc559817bd4e02b1f33b19988918504… (patch)
- www.vulncheck.com/advisories/youlai-boot-through-2.21.1-missing-authorization-i… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110215?
- CVE-2026-110215 is a high-severity vulnerability in Youlaitech Youlai-Boot, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-10-13.
- How severe is CVE-2026-110215?
- High severity. CVSS v3 base score is 8.8 out of 10.