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OpenRemote Manager EUVDEUVD-2026-38594

| CVE-2026-56120 HIGH
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-06-23 disclosure@vulncheck.com GHSA-vjr9-f93j-mjr7
Authentication Bypass Java
8.6
CVSS 4.0 · Vendor: vulncheck
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Severity by source

Vendor (vulncheck) PRIMARY
8.6 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
9.6 CRITICAL

Network-reachable API exploitable by any low-privileged authenticated user with alarm-write role; cross-tenant deletion changes scope (S:C); integrity and availability of other realms' alarms are high, no confidentiality impact.

3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H

Primary rating from Vendor (vulncheck).

CVSS VectorVendor: vulncheck

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Jun 23, 2026 - 22:02 EUVD
Source Code Evidence Fetched
Jun 23, 2026 - 21:33 vuln.today
Analysis Generated
Jun 23, 2026 - 21:33 vuln.today

DescriptionCVE.org

OpenRemote before 1.25.0 contains an insecure direct object reference (IDOR) vulnerability in the bulk alarm deletion endpoint that allows authenticated users to permanently delete alarms belonging to other tenants by supplying arbitrary alarm IDs. The removeAlarms() method in AlarmResourceImpl.java omits realm-scoping validation in its JPA query, enabling any user with alarm-write permissions to enumerate sequential auto-increment alarm IDs and delete cross-tenant alarm records without authorization.

Articles & Coverage 1

News 3 New Java Vulnerabilities - 3 High Severity Jun 24, 2026

AnalysisAI

Cross-tenant alarm destruction in OpenRemote Manager (versions before 1.25.0) allows any authenticated user with alarm-write permissions in their own realm to permanently delete alarm records belonging to other tenants by submitting arbitrary sequential alarm IDs to the bulk-delete endpoint. The flaw stems from missing per-record realm scoping in removeAlarms() and is rated CVSS 4.0 8.6 (high); no public exploit identified at time of analysis, but the GHSA advisory documents the exact vulnerable code path, making weaponization straightforward.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to any realm with alarm-write role
Delivery
Enumerate sequential SentAlarm IDs
Exploit
Submit IDs to bulk removeAlarms endpoint
Execution
JPA delete executes without realm filter
Impact
Cross-tenant alarm records permanently destroyed
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Vulnerability AssessmentAI

Exploitation Exploitation requires (1) a valid authenticated account in any realm on the target OpenRemote Manager instance, (2) the 'alarm write' permission granted to that account within its own realm (a common role for operators), and (3) the deployment being multi-tenant - i.e. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector AV:N/AC:L/AT:N/PR:L/UI:N with VC:H/VI:H/VA:N reflects realistic exploitation: any low-privileged authenticated tenant user can reach the endpoint over the network with no user interaction. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker registers or compromises a low-privileged account in any tenant of a shared OpenRemote installation and obtains alarm-write permission within their own realm. They then enumerate sequential Long IDs (e.g. …
Remediation Upgrade OpenRemote Manager to the vendor-released patched version - per the 1.25.0 release notes the fix is included in 1.25.0, though the GHSA advisory references 1.24.2 as fixed, so confirm the appropriate target with the vendor and apply the highest available release. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Identify all OpenRemote Manager deployments and determine version numbers in use. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-38594 vulnerability details – vuln.today
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