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

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 formats

2 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.

high T1528 Defense Evasion

CVE-2026-44426 - ShellHub Unauthenticated Namespace Enumeration

Sigma YAML — free preview
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

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Indicators of Compromise

IDTypeIndicator
CVE-2026-44426 vulnerability CVE-2026-44426
CWE-639 weakness CWE-639
Source & Attribution
Source PlatformNVD
ChannelNational Vulnerability Database
PublishedMay 14, 2026 at 01:16 UTC

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