CVE-2026-67310

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/openremote/openremote/security/advisories/GHSA-q2gm-frx3-2qjr
https://www.vulncheck.com/advisories/openremote-before-cross-tenant-idor-via-setassetlinks

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-01 13:17

Updated : 2026-09-09 20:35

NVD link : CVE-2026-67310

Mitre link : CVE-2026-67310

CVE.ORG link : CVE-2026-67310

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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