CVE-2026-81679

OpenRemote before 1.28.0 Cross-Realm Information Disclosure via Notification API

HIGH
7.7
CVSS Score
Published: August 27, 2026 at 02:50 PM UTC
Updated: October 8, 2026 at 04:17 PM UTC
1 product affected across 1 vendorOpenremote

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Severity
HIGH7.7
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0 ≤ v < 1.28.00
Vendor states this is fixed in 1.28.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-200

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