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CVE-2026-67310

openremote before 1.27.0 Cross-Tenant IDOR via setAssetLinks

Published: Aug 1, 2026Updated: Aug 3, 2026 Sources: CVE List NVDCWE-863
5.4MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 92.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-863

Affected Products

openremote
oss-project
openremoteOn-prem
ICS / OT / IoT / smart-home

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

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

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