Is CVE-2026-81679 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-81679?

CVE-2026-81679 has a CVSS v3 severity of HIGH (7.7).

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CVE-2026-81679

Description

OpenRemote versions before 1.28.0 contain a cross-realm information disclosure vulnerability in the Notification REST API that allows per-realm tenant administrators to read all tenants' sent notifications including message bodies. Attackers with read:admin credentials in one realm can submit a zero-parameter GET request to the notification endpoint to retrieve sensitive notification metadata and message content from all realms.