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CVE-2026-56767— Maxun < 0.0.42 - Cross-Tenant IDOR in Storage and Webhook API Handlers

Quick assessment

Affected
getmaxun maxun
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Maxun是Maxun组织开源的一款数据抓取与自动化处理的黑客工具。 Maxun 0.0.42之前版本存在授权问题漏洞，该漏洞源于存储和Webhook API处理程序中存在跨租户不安全的直接对象引用，允许经过身份验证的用户访问其他用户的机器人和OAuth令牌。攻击者可通过绕过API端点的所有权检查，读取明文Google和Airtable访问令牌，修改、删除或执行其他用户的机器人。

CVSS 8.8 · High EPSS 0.60% · P49

Affected Version Matrix 2

VendorProduct Version RangeStatus
getmaxun maxun < 0.0.42 affected
0.0.42 unaffected
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I. Basic Information for CVE-2026-56767

Vulnerability Information
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Vulnerability Title
Maxun < 0.0.42 - Cross-Tenant IDOR in Storage and Webhook API Handlers
Source: CVE Program / CVE List V5
Vulnerability Description
Maxun before 0.0.42 contains a cross-tenant insecure direct object reference vulnerability in storage and webhook API handlers that allows authenticated users to access other users' robots and OAuth tokens. Attackers can read plaintext Google and Airtable access tokens, modify, delete, or execute other users' robots by bypassing ownership checks in API endpoints.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Maxun 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Maxun是Maxun组织开源的一款数据抓取与自动化处理的黑客工具。 Maxun 0.0.42之前版本存在授权问题漏洞，该漏洞源于存储和Webhook API处理程序中存在跨租户不安全的直接对象引用，允许经过身份验证的用户访问其他用户的机器人和OAuth令牌。攻击者可通过绕过API端点的所有权检查，读取明文Google和Airtable访问令牌，修改、删除或执行其他用户的机器人。
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
getmaxun maxun 0 ~ 0.0.42 -

II. Public POCs for CVE-2026-56767

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7241 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-56767

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Patches & Fixes for CVE-2026-56767 (1)

Vendor Advisories for CVE-2026-56767 (1)

Other References for CVE-2026-56767 (1)

IV. Related Vulnerabilities

Same product: maxun
Same vendor: getmaxun
Same weakness: CWE-862