CVE-2026-66013 in OpenRemote
Summary
by MITRE • 07/25/2026
OpenRemote before 1.26.2 contains an authentication bypass vulnerability in the console registration API that allows unauthenticated attackers to update existing console assets by supplying a known asset identifier. Attackers can overwrite push notification tokens and console metadata without authentication or ownership validation, redirecting notifications or denying delivery to legitimate consoles.
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Analysis
by VulDB Data Team • 07/25/2026
This vulnerability represents a critical authentication bypass flaw in OpenRemote versions prior to 1.26.2 that directly undermines the system's access control mechanisms. The issue resides within the console registration API where the application fails to properly validate user authentication status before processing asset update requests. When an attacker provides a known asset identifier, the system accepts the update request without verifying that the requester possesses legitimate authorization or ownership rights to modify the target console asset.
The technical implementation of this vulnerability stems from inadequate input validation and missing authentication checks within the API endpoint responsible for handling console registration updates. This weakness allows malicious actors to exploit the system's trust model by crafting specially formatted requests that leverage existing asset identifiers to manipulate console configurations. The flaw specifically affects the update operations rather than creation or deletion functions, indicating a targeted vulnerability in the modification workflow.
Operationally, this vulnerability creates significant security implications for organizations relying on OpenRemote for IoT device management and monitoring. Attackers can exploit this weakness to redirect push notifications intended for legitimate consoles to arbitrary endpoints, effectively compromising the integrity of the notification system. Additionally, the ability to overwrite console metadata enables attackers to deny service delivery to authorized devices while maintaining their own access capabilities. This creates a persistent threat vector that could go undetected for extended periods, as the modifications appear to originate from legitimate system operations.
The vulnerability aligns with CWE-287 which addresses improper authentication issues, and maps to ATT&CK technique T1078.004 related to valid accounts and privilege escalation through manipulation of system components. Organizations using affected versions should immediately implement patch management procedures to upgrade to OpenRemote 1.26.2 or later, while also reviewing existing console registration workflows for potential exploitation. Network segmentation and API rate limiting measures can provide additional defense-in-depth layers until full patches are deployed across all affected systems.
Mitigation strategies should include immediate deployment of the vendor-provided security patch that addresses the authentication bypass in the console registration API. Organizations should also implement comprehensive monitoring of API access patterns to detect anomalous behavior indicative of exploitation attempts, particularly around asset identifier usage and modification timestamps. Additional controls such as mandatory multi-factor authentication for administrative API endpoints and regular security audits of console registration processes can help prevent unauthorized modifications while maintaining operational integrity.