CVE-2026-16454 Privilege Escalation in Eclipse hawkBit DDI allows Tenant-Isolated Firmware Exfiltration

Medium 4.3 Published 21 Jul 2026 Updated 22 Jul 2026

Authenticated devices can bypass authorization checks to download or list any firmware artifact within their tenant, leading to data exfiltration.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-16454?

CVE-2026-16454 is a medium-severity missing authorization vulnerability in eclipse-hawkbit/hawkbit, published on 21 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-862, CWE-284

Which versions are affected by CVE-2026-16454?

It affects 1 product.

Products include Eclipse Hawkbit.

How do I fix CVE-2026-16454?

No fix has been published for CVE-2026-16454 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-16454 being exploited?

There is no known exploitation of CVE-2026-16454 in the wild and no public exploit code.

Sources

Also known as GHSA-92r3-p8c2-3fpx, GHSA-f3j8-8ggq-f9x2.