CVE-2026-44424 ShellHub: Cross-tenant IDOR in `GET /api/devices/:uid` discloses device data of any namespace
Authenticated users can read device metadata from any namespace by guessing device UIDs, exposing sensitive information across tenants.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44424?
CVE-2026-44424 is a medium-severity missing authorization vulnerability in shellhub-io shellhub, published on 13 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
ShellHub is a centralized SSH gateway. Prior to 0.24.2, GET /api/devices/:uid returns the full device object whenever the caller is authenticated, without verifying that the device belongs to the caller's namespace (tenant). Any authenticated user (JWT or API Key) who knows or can guess a device UID can read device metadata from any other namespace. This vulnerability is fixed in 0.24.2.
Weakness: CWE-639
Which versions are affected by CVE-2026-44424?
3 open source packages ship an affected version, including github.com/shellhub-io/shellhub. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/shellhub-io/shellhub Go | All versions | 0.24.2 |
github.com/shellhub-io/shellhub Go | All versions | 0.24.2 |
github.com/shellhub-io/shellhub Go | All versions | 0.24.2 |
Products include Shellhub Shellhub.
How do I fix CVE-2026-44424?
Upgrade github.com/shellhub-io/shellhub to 0.24.2 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-44424 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44424 exists.
Other vulnerabilities in shellhub-io shellhub
Sources
Also known as GHSA-j72x-xfwg-783f, GO-2026-5453.