Vulnerability · Published May 13, 2026 · Assigned by GitHub_M

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

Medium 6.5

In plain English

A medium-severity authorization bypass via user-controlled key in shellhub from shellhub-io. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.2%top 84.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/shellhub-io/shellhub	0.24.2	GHSA-j72x-xfwg-783f
Go	github.com/shellhub-io/shellhub	0.24.2	GO-2026-5453

Affected products (as reported)

Vendor	Product	Versions
shellhub-io	shellhub	< 0.24.2

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

https://github.com/shellhub-io/shellhub/security/advisories/GHSA-j72x-xfwg-783f x_refsource_CONFIRM