CVE-2026-82817 dibo-software diboot Tenant Administrator Management API admin access control

Medium 5.3 Published Updated

Remote attackers can manipulate tenantId to bypass access controls in the Tenant Administrator Management API, potentially escalating privileges or modifying data.

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-2026-82817?

CVE-2026-82817 is a medium-severity missing authorization vulnerability in dibo-software diboot, published on 31 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in dibo-software diboot 3.8.0. Affected by this issue is some unknown functionality of the file /admin/ of the component Tenant Administrator Management API. Performing a manipulation of the argument tenantId results in improper access controls. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-284, CWE-266

Which versions are affected by CVE-2026-82817?

How do I fix CVE-2026-82817?

No fix has been published for CVE-2026-82817 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-2026-82817 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82817 exists.

Sources

Also known as GHSA-j6m3-m8gc-394c.

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