nerves-hub nerves_hub_web up to 2.3.x API Endpoint improper authorization

Summaryinfo

A vulnerability was found in nerves-hub nerves_hub_web up to 2.3.x. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component API Endpoint. Such manipulation leads to improper authorization. This vulnerability is traded as CVE-2026-28806. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in nerves-hub nerves_hub_web up to 2.3.x. Affected by this issue is some unknown processing of the component API Endpoint. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Improper Authorization vulnerability in nerves-hub nerves_hub_web allows cross-organization device control via device bulk actions and device update API. Missing authorization checks in the device bulk actions and device update API endpoints allow authenticated users to target devices belonging to other organizations and perform actions outside of their privilege level. An attacker can select devices outside of their organization by manipulating device identifiers and perform management actions on them, such as moving them to products they control. This may allow attackers to interfere with firmware updates, access device functionality exposed by the platform, or disrupt device connectivity. In environments where additional features such as remote console access are enabled, this could lead to full compromise of affected devices. This issue affects nerves_hub_web: from 1.0.0 before 2.4.0.

The weakness was shared with NervesHub Team/NervesCloud as GHSA-f8fr-mccc-xvcx. The advisory is available at github.com. This vulnerability is handled as CVE-2026-28806 since 03/03/2026. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 2.4.0 eliminates this vulnerability. Applying the patch 1f69c9d595684a4650c3ac702f3dc7c5bcd7526c is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• nerves-hub

Name

• nerves_hub_web

Version

• 2.0
• 2.1
• 2.2
• 2.3

License

• open-source

Website

• Product: https://github.com/nerves-hub/nerves_hub_web/

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