TI-2026-56333 Aliases CVE-2026-81679 GHSA-fgj3-5frq-8vw8

OpenRemote before 1.28.0 Cross-Realm Information Disclosure via Notification API

LOW 36CWE-200Published 2026-08-27 · Updated 2026-10-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00392 33rd percentileScored 2026-11-07

Fix Fixed openremote (openremote): 1.28.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
openremote	openremote	before 1.28.0	1.28.0	Patch available	CNA

openremote Vendoropenremote Affected before 1.28.0 Fixed in 1.28.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:openremote:openremote::::::::	—	—	openremote

cpe:2.3:a:openremote:openremote:*:*:*:*:*:*:*:* Versions — — ·openremote

Remediation

Fix · CNA openremote (openremote) Fixed in 1.28.0

Timeline

2026-10-02 Threatist record created from CVE-2026-81679
2026-10-03 Alias added: GHSA-fgj3-5frq-8vw8

References

Advisory 1

GitHub Security Advisory (GHSA-6ff4-4frc-r287)

TI-2022-13714 An issue was discovered in OpenRemote through 1.0.4 allows attackers to execute arbitrary… CVSS 3.1CRITICAL 9.8
TI-2026-28724 OpenRemote is Vulnerable to Expression Injection CVSS 3.1CRITICAL 10.0
TI-2026-79160 Missing authorization in OpenRemote gateway tunnel endpoints CVSS 4.0CRITICAL 9.0
TI-2026-40948 OpenRemote < 1.25.0 IDOR via Bulk Alarm Deletion Endpoint CVSS 4.0HIGH 8.6
TI-2026-71893 OpenRemote: Cross-Realm User Information Disclosure in UserResourceImpl CVSS 3.1HIGH 7.7
TI-2026-29790 OpenRemote has Improper Access Control via updateUserRealmRoles function CVSS 3.1HIGH 7.0

See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences