CVE-2026-44423 - Vulnerability Details - OpenCVE

ShellHub is a centralized SSH gateway. Prior to 0.24.2, GET /api/sessions/:uid returns the full session object for any authenticated caller, without scoping by the caller's tenant. An authenticated user can read session records (SSH username, device UID, remote IP, terminal type, authenticated flag, timestamps) belonging to any other namespace. This vulnerability is fixed in 0.24.2.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Vendors	Products
Shellhub-io	Shellhub

No data.

No data.

References

Link	Providers
https://github.com/shellhub-io/shellhub/security/advisories/GHSA-9w9c-9w8m-w89q

History

Thu, 14 May 2026 15:00:00 +0000

Type	Values Removed	Values Added
First Time appeared		Shellhub-io Shellhub-io shellhub
Vendors & Products		Shellhub-io Shellhub-io shellhub

Thu, 14 May 2026 13:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 13 May 2026 21:45:00 +0000

Type	Values Removed	Values Added
Description		ShellHub is a centralized SSH gateway. Prior to 0.24.2, GET /api/sessions/:uid returns the full session object for any authenticated caller, without scoping by the caller's tenant. An authenticated user can read session records (SSH username, device UID, remote IP, terminal type, authenticated flag, timestamps) belonging to any other namespace. This vulnerability is fixed in 0.24.2.
Title		ShellHub: Cross-tenant IDOR in `GET /api/sessions/:uid` discloses SSH session data
Weaknesses		CWE-639
References		https://github.com/shellhub-io/shellhub/security/advisories/GHSA-9w9c-9w8m-w89q
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}`

MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-05-13T21:07:33.174Z

Updated: 2026-05-14T12:50:40.262Z

Reserved: 2026-05-06T14:40:00.953Z

Link: CVE-2026-44423

Vulnrichment

Updated: 2026-05-14T12:47:58.084Z

NVD

Status : Undergoing Analysis

Published: 2026-05-13T22:16:44.103

Modified: 2026-05-14T16:44:55.820

Link: CVE-2026-44423

Redhat

No data.

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