Auth bypass in Mateaix Matecloud
CVE-2026-110108
MateCloud through 5.0.8 contains a missing authorization vulnerability that allows any authenticated user to manage object storage by calling the unprotected /api/v1/admin/storage endpoints in StorageController. Low-privilege or self-registered users can supply arbitrary bucket and objectName values to list objects, obtain pre-signed download URLs for other users' files, delete objects, and upload at chosen keys.
Vulnerability class: Broken Access Control
Published .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
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/matecloud-storage-admin-missing-authz (third-party-advisory)
- github.com/mateaix/matecloud/blob/57b1edc0f0b8b964448e2d41ef7ba98751e71d8d/mate… (technical-description)
- github.com/mateaix/matecloud/blob/57b1edc0f0b8b964448e2d41ef7ba98751e71d8d/mate… (technical-description)
- github.com/mateaix/matecloud (product)
- www.vulncheck.com/advisories/matecloud-through-5.0.8-missing-authorization-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110108?
- CVE-2026-110108 is a high-severity vulnerability in Mateaix Matecloud, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-10-13.
- How severe is CVE-2026-110108?
- High severity. CVSS v3 base score is 8.1 out of 10.