Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2026-44426— ShellHub: Cross-tenant IDOR in `GET /api/namespaces/:tenant` via API Key bypasses membership check

CVSS 6.5 · Medium EPSS 0.04% · P11

Affected Version Matrix 1

VendorProductVersion RangeStatus
shellhub-ioshellhub< 0.24.2affected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-44426

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
ShellHub: Cross-tenant IDOR in `GET /api/namespaces/:tenant` via API Key bypasses membership check
Source: NVD (National Vulnerability Database)
Vulnerability Description
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 API Key's own tenant scope. The handler conditionally skips the membership check when the user ID (X-ID) is absent, which is exactly the case for API Key authentication. This vulnerability is fixed in 0.24.2.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: NVD (National Vulnerability Database)
Vulnerability Title
ShellHub 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ShellHub是ShellHub开源的一个远程设备访问与管理平台。 ShellHub 0.24.2之前版本存在安全漏洞，该漏洞源于GET /api/namespaces/:tenant返回完整命名空间对象，包括成员列表、设置和设备计数，允许任何通过API密钥身份验证的调用者访问任何租户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
shellhub-ioshellhub < 0.24.2 -

II. Public POCs for CVE-2026-44426

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-44426

请登录查看更多情报信息。

Same Patch Batch · shellhub-io · 2026-05-13 · 4 CVEs total

CVE-2026-444236.5 MEDIUMShellHub: Cross-tenant IDOR in `GET /api/sessions/:uid` discloses SSH session data
CVE-2026-444246.5 MEDIUMShellHub: Cross-tenant IDOR in `GET /api/devices/:uid` discloses device data of any namesp
CVE-2026-444255.4 MEDIUMShellHub: Crash-DoS via field injection in filter and sort-by parameters

IV. Related Vulnerabilities

Same product: shellhub
Same vendor: shellhub-io
Same weakness: CWE-639

V. Comments for CVE-2026-44426

No comments yet

Leave a comment