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CVE-2026-56237— Capgo - Unauthenticated API Key Generation via Client-Side Parameter Manipulation

Quick assessment

Affected
Capgo Capgo
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.

Capgo是CAPGO公司的一个专为CapacitorJS开发者打造的移动应用开发和更新平台。 Capgo 12.128.2之前版本存在授权问题漏洞，该漏洞源于API密钥生成机制存在认证缺陷，API密钥在前端请求中暴露且后端未验证密钥是否安全生成并与认证用户绑定，攻击者可通过篡改生成请求中的API密钥参数提供任意值，生成自定义API密钥，可能导致未经授权访问受保护端点。

CVSS 9.1 · Critical EPSS 0.52% · P42

Affected Version Matrix 2

VendorProduct Version RangeStatus
Capgo Capgo < 12.128.2 affected
12.128.2 unaffected
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I. Basic Information for CVE-2026-56237

Vulnerability Information
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Vulnerability Title
Capgo - Unauthenticated API Key Generation via Client-Side Parameter Manipulation
Source: CVE Program / CVE List V5
Vulnerability Description
Capgo before 12.128.2 contains a broken authentication vulnerability in its API key generation mechanism. API keys are exposed in frontend requests, and the backend fails to validate that keys are securely generated and bound to the authenticated user. An attacker can tamper with the API key parameter in the generation request and supply arbitrary values, generating custom API keys without proper authorization, which can lead to unauthorized access to protected endpoints.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Capgo 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Capgo是CAPGO公司的一个专为CapacitorJS开发者打造的移动应用开发和更新平台。 Capgo 12.128.2之前版本存在授权问题漏洞，该漏洞源于API密钥生成机制存在认证缺陷，API密钥在前端请求中暴露且后端未验证密钥是否安全生成并与认证用户绑定，攻击者可通过篡改生成请求中的API密钥参数提供任意值，生成自定义API密钥，可能导致未经授权访问受保护端点。
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
Capgo Capgo 0 ~ 12.128.2 -

II. Public POCs for CVE-2026-56237

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 12549 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
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-56237

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Vendor Advisories for CVE-2026-56237 (2)

Same Patch Batch · Capgo · 2026-06-24 · 10 CVEs total

CVE-2026-56232 8.8 HIGH Capgo - Subkey Scope Bypass in middlewareKey via x-limited-key-id Header
CVE-2026-56223 8.7 HIGH Capgo - Account Takeover via Cross-Domain SSO Email Assertion in provision-user
CVE-2026-56231 7.6 HIGH Capgo - Broken Object Level Authorization in Build Job Control via jobId Parameter
CVE-2026-56244 7.1 HIGH Capgo - Webhook Signing Secret Disclosure via Non-Admin API Key
CVE-2026-56256 7.1 HIGH Capgo - Two-Factor Authentication Bypass via Organization Management API
CVE-2026-56257 7.1 HIGH Capgo - Authorization Bypass in App Ownership Transfer via Direct PostgREST Update
CVE-2026-56302 6.5 MEDIUM Capgo - Unsecured Supabase Images Bucket via Missing Row Level Security
CVE-2026-56337 5.3 MEDIUM Capgo - Information Disclosure via Unauthenticated RPC Function exist_app_v2
CVE-2026-56338 5.3 MEDIUM Capgo - Denial of Service in 2FA Email Verification via /auth/v1/otp Endpoint

IV. Related Vulnerabilities

Same product: Capgo
Same vendor: Capgo
Same weakness: CWE-287

V. Comments for CVE-2026-56237

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