CVE-2026-44423— ShellHub: Cross-tenant IDOR in `GET /api/sessions/:uid` discloses SSH session data
Possible ATT&CK Techniques 1AI
T1530 · Data from Cloud StorageAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| shellhub-io | shellhub | < 0.24.2 | affected |
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I. Basic Information for CVE-2026-44423
Vulnerability Information
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Vulnerability Title
ShellHub: Cross-tenant IDOR in `GET /api/sessions/:uid` discloses SSH session data
Source: NVD (National Vulnerability Database)
Vulnerability 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.
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/sessions/:uid返回任何经过身份验证调用者的完整会话对象，未按租户范围限制，允许用户读取其他命名空间的会话记录。
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| shellhub-io | shellhub | < 0.24.2 | - |
II. Public POCs for CVE-2026-44423
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · shellhub-io · 2026-05-13 · 4 CVEs total
| CVE-2026-44424 | 6.5 MEDIUM | ShellHub: Cross-tenant IDOR in `GET /api/devices/:uid` discloses device data of any namesp |
| CVE-2026-44426 | 6.5 MEDIUM | ShellHub: Cross-tenant IDOR in `GET /api/namespaces/:tenant` via API Key bypasses members |
| CVE-2026-44425 | 5.4 MEDIUM | ShellHub: Crash-DoS via field injection in filter and sort-by parameters |
IV. Related Vulnerabilities
Same weakness: CWE-639
- CVE-2026-45666
Open WebUI: Indirect Object Reference (IDOR) in user notes - CVE-2026-44570
Open WebUI: Inconsistent authorization controls within memor - CVE-2026-45402
Open WebUI: Cross-User File Access via Unchecked file_id in - CVE-2026-45386
Open WebUI: An IDOR vulnerability exists in the pin_channel_ - CVE-2026-45398
Open WebUI: IDOR - Retrieval API Bypasses Knowledge Base Acc
V. Comments for CVE-2026-44423
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