CVE-2026-16454
Received Received - Intake

Privilege Escalation in Eclipse hawkBit

Publication date: 2026-07-21

Last updated on: 2026-07-21

Assigner: Eclipse Foundation

Description
In Eclipse hawkBit versions 1.0.3 and prior, a privilege escalation vulnerability (CWE-284 / CWE-862) has been identified in the Direct Device Integration (DDI) Controller. This vulnerability allows an authenticated device to escalate its permissions and bypass the strict boundaries of its assigned updates. Under normal operation, a device should be restricted strictly to the specific firmware artifacts explicitly assigned to it. However, this flaw enables any authenticated device to bypass this restriction and download any firmware artifact within the same tenant. This is not an authentication bypass; the requesting device must possess valid credentials for its respective tenant. Instead, the issue stems from a flaw in object-level authorization validation. A related, lower-severity helper issue exists in the listing software modules artifacts metadata endpoint. This endpoint does not enforce assignment checks, enabling an authenticated device to list and enumerate available firmware artifacts, which can facilitate targeted exfiltration using the main download authorization bypass.

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Meta Information

Published
2026-07-21
Last Modified
2026-07-21
Generated
2026-07-21
AI Q&A
2026-07-21
EPSS Evaluated
N/A
NVD
CVE-2026-16454
EUVD
EUVD-2026-46316

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
eclipse hawkbit to 1.0.3 (exc)
eclipse hawkbit to 1.0.4 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

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Executive Summary

This vulnerability is a privilege escalation flaw in Eclipse hawkBit versions 1.0.3 and prior. It allows an authenticated device within a tenant to bypass firmware access restrictions and download any firmware artifact assigned to that tenant, even if not explicitly assigned to the device. The issue stems from improper object-level authorization validation, not an authentication bypass.

Detection Guidance

To detect this vulnerability, check if your Eclipse hawkBit instance is running version 1.0.3 or earlier. Use commands like 'curl -s http://<hawkbit-server>/rest/v1/about | grep version' to verify the version. Also, monitor logs for unauthorized firmware downloads or access attempts by authenticated devices.

Impact Analysis

An attacker with valid credentials for a tenant could access unauthorized firmware artifacts within the same tenant. While confidentiality impact is low due to tenant scope restrictions, it could enable targeted exfiltration of firmware data. The attacker must be an authenticated device within the target tenant.

Compliance Impact

The vulnerability allows unauthorized access to firmware artifacts within a tenant, which could potentially expose sensitive data if firmware contains confidential information. This may impact compliance with GDPR if personal data is involved or HIPAA if health-related data is present, as unauthorized access could violate data protection requirements.

Mitigation Strategies

Immediately upgrade Eclipse hawkBit to version 1.0.4 or later to fix the authorization flaw. Ensure all devices use valid credentials and restrict firmware access to assigned artifacts only. Review logs for suspicious activity and apply network segmentation to limit exposure.

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