Vulnerability Description
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 Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/openremote/openremote/security/advisories/GHSA-q2gm-frx3-2qjr
- https://www.vulncheck.com/advisories/openremote-before-cross-tenant-idor-via-set
FAQ
What is CVE-2026-67310?
CVE-2026-67310 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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...
How severe is CVE-2026-67310?
CVE-2026-67310 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-67310?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.