CVE-2026-56784 OpenRemote < 1.25.0 IDOR via Bulk Alarm Deletion Endpoint

High 8.6 Published Updated

Authenticated users can delete alarms belonging to other tenants by exploiting missing realm-scoping validation in the bulk alarm deletion endpoint.

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-2026-56784?

CVE-2026-56784 is a high-severity missing authorization vulnerability in openremote, published on 23 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenRemote before 1.25.0 contains an insecure direct object reference (IDOR) vulnerability in the bulk alarm deletion endpoint that allows authenticated users to permanently delete alarms belonging to other tenants by supplying arbitrary alarm IDs. The removeAlarms() method in AlarmResourceImpl.java omits realm-scoping validation in its JPA query, enabling any user with alarm-write permissions to enumerate sequential auto-increment alarm IDs and delete cross-tenant alarm records without authorization.

Weakness: CWE-639

Which versions are affected by CVE-2026-56784?

How do I fix CVE-2026-56784?

No fix has been published for CVE-2026-56784 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-2026-56784 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56784 exists.

Sources

Also known as CVE-2026-56120, GHSA-pv42-3qx9-m56g.

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