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9.4
CVE-2026-110215: Youlaitech Youlai-Boot up to 2.21.1 lets users gain admin rights
CVE-2026-110215 · published today
Summary
The Youlai-Boot application (versions up to 2.21.1) lets any logged‑in user change menu and button permissions for a role, which can be used to give themselves full administrator access. This means a low‑privilege account could take control of the system and perform any action. Apply the vendor’s update or patch, and limit who can modify role permissions until the fix is in place.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| youlaitech | youlai-boot | <= 2.21.1 |
Original advisory text
youlai-boot through 2.21.1 Missing Authorization in Role Menu Assignment Allows Privilege Escalation
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.
References
- https://github.com/youlaitech/youlai-boot/blob/v2.21.1/src/main/java/com/youlai/... Third Party Advisory
- https://github.com/youlaitech/youlai-boot/blob/v2.21.1/src/main/java/com/youlai/... Third Party Advisory
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/youlai-boot-role-menu-assignment-and-u... Vendor Advisory
- https://github.com/youlaitech/youlai-boot/commit/36d2db6dc559817bd4e02b1f33b1998... Patch
- https://www.vulncheck.com/advisories/youlai-boot-through-2.21.1-missing-authoriz... Vendor Advisory
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-1102... Vendor Advisory
- https://github.com/youlaitech/youlai-boot Product
- https://nvd.nist.gov/vuln/detail/CVE-2026-110215 Vendor Advisory
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Severity
9.4
Critical
Type
CWE-862Missing Authorization
Timeline
Published13 Oct 2026
Updated14 Oct 2026
First seen13 Oct 2026
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