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CVE-2026-56338— Capgo - Denial of Service in 2FA Email Verification via /auth/v1/otp Endpoint

Quick assessment

Affected
Capgo Capgo
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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之前版本存在异常处理不当漏洞，该漏洞源于/auth/v1/otp端点中存在验证码验证失败问题，可能导致拒绝服务攻击，阻止双因素身份验证的电子邮件验证。

CVSS 5.3 · Medium EPSS 0.49% · P40

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-2026-56338

Vulnerability Information
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Vulnerability Title
Capgo - Denial of Service in 2FA Email Verification via /auth/v1/otp Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Capgo before 12.128.2 contains a denial of service vulnerability in the /auth/v1/otp endpoint that prevents email verification for two-factor authentication due to captcha validation failures. Authenticated users cannot complete 2FA enrollment as the backend consistently returns HTTP 500 errors with captcha verification process failed messages, blocking access to security controls.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对异常条件检查或处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Capgo 异常处理不当漏洞
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之前版本存在异常处理不当漏洞，该漏洞源于/auth/v1/otp端点中存在验证码验证失败问题，可能导致拒绝服务攻击，阻止双因素身份验证的电子邮件验证。
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-2026-56338

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III. Intelligence Information for CVE-2026-56338

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Vendor Advisories for CVE-2026-56338 (2)

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

CVE-2026-56237 9.1 CRITICAL Capgo - Unauthenticated API Key Generation via Client-Side Parameter Manipulation
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

IV. Related Vulnerabilities

Same product: Capgo
Same vendor: Capgo
Same weakness: CWE-703

V. Comments for CVE-2026-56338

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