CVE-2026-44426 — ShellHub is a centralized SSH gateway. Prior to 0.24.2, GET
CVE-2026-44426 — ShellHub is a centralized SSH gateway. Prior to 0.24.2, GET /api/namespaces/:tenant returns the full namespace object — including the members list (user IDs, e-mails, roles), settings, and device counts — to any caller authenticated by an API Key, for any tenant, regardless of the A
What This Means For You
- If your environment is affected by CWE-639, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-44426 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
2 rules · 6 SIEM formats2 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-44426 - ShellHub Unauthenticated Namespace Enumeration
title: CVE-2026-44426 - ShellHub Unauthenticated Namespace Enumeration
id: scw-2026-05-13-ai-1
status: experimental
level: high
description: |
Detects the specific unauthenticated API endpoint access in ShellHub prior to version 0.24.2 that leaks namespace information. This is a direct indicator of exploitation for CVE-2026-44426.
author: SCW Feed Engine (AI-generated)
date: 2026-05-13
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-44426/
tags:
- attack.defense_evasion
- attack.t1528
logsource:
category: webserver
detection:
selection:
cs-method:
- 'GET'
cs-uri:
- '/api/namespaces/'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-44426 | vulnerability | CVE-2026-44426 |
| CWE-639 | weakness | CWE-639 |
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 14, 2026 at 01:16 UTC |
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