CVE-2026-81679Public exploitNetwork attack vectorHinoki check available

Cross-realm notification disclosure via unscoped read query

Published Aug 27, 2026 · Updated Aug 27, 2026

Information disclosure in OpenRemote before 1.28.0 allows remote authenticated users to read all tenants' sent notifications via the REST API. NotificationResourceImpl.getNotifications forwards empty criteria to NotificationService, whose read path skips the minimum-criteria guard and executes a query without a realm column or predicate. A read:admin token in one realm is sufficient, and the response exposes cross-tenant notification metadata and message JSON bodies without altering records.

CVSS severity7.7
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Information disclosure in OpenRemote before 1.28.0 allows remote authenticated users to read all tenants' sent notifications via the REST API. NotificationResourceImpl.getNotifications forwards empty criteria to NotificationService, whose read path skips the minimum-criteria guard and executes a query without a realm column or predicate. A read:admin token in one realm is sufficient, and the response exposes cross-tenant notification metadata and message JSON bodies without altering records.

The record

CVE
CVE-2026-81679
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
OpenRemote
Product
OpenRemote
Classifications
CWE-284, CWE-200, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.28.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenRemote · OpenRemoteversion=0 <1.28.0

Published CVSS scores

7.7OpenRemoteCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1213Data from Information Repositories

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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