Auth bypass in Youlaitech Youlai-Boot
CVE-2026-110216
youlai-boot through 2.21.1 contains a missing authorization vulnerability that allows any authenticated user to enable or disable accounts because the updateUserStatus handler lacks a @PreAuthorize check. Attackers can send PATCH requests to /api/v1/users/{userId}/status to disable root or admin accounts, locking administrators out, or re-enable accounts an administrator has disabled.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/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/commit/86a9b3e212ff5a5537b0c7050c7802aea7fe48… (patch)
- www.vulncheck.com/advisories/youlai-boot-through-2.21.1-missing-authorization-i… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110216?
- CVE-2026-110216 is a high-severity vulnerability in Youlaitech Youlai-Boot, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-10-13.
- How severe is CVE-2026-110216?
- High severity. CVSS v3 base score is 7.1 out of 10.