TI-2026-47606 Aliases CVE-2026-67310 GHSA-4f8w-fmh5-hcxr

openremote before 1.27.0 Cross-Tenant IDOR via setAssetLinks

LOW 24CWE-863Published 2026-08-01 · Updated 2026-10-08

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

OpenRemote (org.openremote:openremote) versions <= 1.26.2 contain an insecure direct object reference vulnerability in the setAssetLinks endpoint of AlarmResourceImpl. The realm access check validates only a single realm obtained via realms.stream().findFirst() on a HashSet of realms from the request, rather than all realms. Because HashSet iteration order is non-deterministic, an authenticated attacker who includes alarm-asset links from both their own realm and a victim realm can, with roughly 50% probability per request (retryable), persist cross-tenant links and disclose victim asset names (returned via @Formula fields) through GET requests on the attacker's own alarm. Fixed in 1.27.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00239 15th percentileScored 2026-11-07

Fix Fixed openremote (openremote): 1.27.0

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 1.27.0	1.27.0	Patch available	CNA

openremote Vendoropenremote Affected before 1.27.0 Fixed in 1.27.0 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 1.27.0

Timeline

2026-10-02 Threatist record created from CVE-2026-67310
2026-10-03 Alias added: GHSA-4f8w-fmh5-hcxr

References

Advisory 1

GitHub Security Advisory (GHSA-q2gm-frx3-2qjr)

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