CVE-2026-67310
openremote before 1.27.0 Cross-Tenant IDOR via setAssetLinks
- State
- Published
- Severity
- 5.3 Medium
- Published
- Aug 1, 2026
- Updated
- Oct 8, 2026
- Reserved
- Jul 29, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
openremoteopenremote |
|
References
- GitHub Security Advisory (GHSA-q2gm-frx3-2qjr)vendor-advisory
- VulnCheck Advisory: openremote before 1.27.0 Cross-Tenant IDOR via setAssetLinksthird-party-advisory
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