ShellHub has cross-tenant IDOR in `GET /api/devices/:uid` that discloses device data of any namespace — CVE-2026-44424

Summary

## Summary `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. ## Severity **CVSS 3.1: 7.5 (High)** CWE-639 — Authorization Bypass Through User-Controlled Key ## Affected…

Product

go: github.com/shellhub-io/shellhub

What to do

General, cautious steps (verify details in the official source):

• Review exposure and plan remediation based on risk and environment.
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

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