Bug 2570722 (CVE-2026-120286)

Summary: CVE-2026-120286 nerves_hub: nerves_hub_web: Privilege escalation via missing authorization checks
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in nerves_hub_web. An authenticated user with read-only access can exploit missing authorization checks in the web interface by triggering administrative event handlers. This flaw allows an attacker to escalate privileges to modify device settings, register unauthorized certificates to impersonate devices, and manipulate firmware deployments within their organization.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-11-10 20:17:47 UTC 
Missing Authorization vulnerability in the device and deployment group pages in nerves-hub nerves_hub_web allows an authenticated organization member with the view role to change devices and deployment groups via LiveView events reserved for the manage role. The event handlers that add and delete device certificates, add and remove tags, overwrite or clear a device's manual location, remove a device from its deployment group, move matched devices into a deployment group or remove unmatched ones, import devices from a CSV, and start, retry or delete firmware delta builds carry out the change without calling authorized!/2, and the pages render the controls to every member.

A view member can add a certificate that lets whoever holds its key connect as the device, delete a certificate so the device can no longer authenticate with it, and change which deployment group, and so which firmware release, a device receives. Everything stays within the organizations the member belongs to.

This issue affects nerves_hub: from 1.0.0 before 2.5.3.