nerves-hub nerves_hub_web up to 2.5.2 Dashboard assign_org_to_scope session expiration

Summaryinfo

A vulnerability classified as critical has been found in nerves-hub nerves_hub_web up to 2.5.2. Affected by this issue is the function assign_org_to_scope of the component Dashboard. This manipulation causes session expiration. This vulnerability is handled as CVE-2026-120997. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in nerves-hub nerves_hub_web up to 2.5.2. Affected by this vulnerability is the function assign_org_to_scope of the component Dashboard. The manipulation with an unknown input leads to a session expiration vulnerability. The CWE definition for the vulnerability is CWE-613. This entry has been deprecated because it was insufficiently clear. Consider CWE-1462 and its descendants. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Improper Session Invalidation vulnerability in the dashboard pages, device console and local shell channels in nerves-hub nerves_hub_web allows an organization member who is removed or given a lower role to keep acting at their old role through anything they had open at the time. The dashboard reads the member's role once when a page mounts, in the assign_org_to_scope hook of NervesHubWeb.Auth, and the console, local shell and device event stream channels check membership once at join. Removing a member or changing their role tells none of them, so open pages keep carrying out actions and open consoles keep running commands on the device until the page reloads or the socket disconnects. The dashboard also opens consoles over NervesHubWeb.UserSocket with a token that holds only the user's id, is accepted for 24 hours, and is not revoked by signing out, which disconnects only the session's LiveViews. Whoever holds a token taken from a page can open consoles as that user, within the user's current membership, until it expires. This issue affects nerves_hub: from 1.0.0 before 2.5.3.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-120997 since 11/05/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available.

Upgrading to version 2.5.3 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• nerves-hub

Name

• nerves_hub_web

Version

• 2.5.0
• 2.5.1
• 2.5.2

Website

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

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion