CVE-2026-110108 MateCloud through 5.0.8 Missing Authorization via /api/v1/admin/storage API

High 8.6 Published Updated

Authenticated users can bypass authorization to manage object storage, allowing them to read, delete, or upload files belonging to other users.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-110108?

CVE-2026-110108 is a high-severity missing authorization vulnerability in mateaix MateCloud, published on 13 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-862

Which versions are affected by CVE-2026-110108?

How do I fix CVE-2026-110108?

No fix has been published for CVE-2026-110108 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-110108 being exploited?

There is no known exploitation of CVE-2026-110108 in the wild and no public exploit code.

Sources

Also known as GHSA-g49f-wwx4-j76v.

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