Unrated severityNVD Advisory· Published Jun 24, 2026· Updated Jun 24, 2026
Capgo - Denial of Service in 2FA Email Verification via /auth/v1/otp Endpoint
CVE-2026-56338
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
2- github.com/Cap-go/capgo/security/advisories/GHSA-m53g-7gcj-x6f7mitrevendor-advisory
- www.vulncheck.com/advisories/capgo-denial-of-service-in-2fa-email-verification-via-auth-v1-otp-endpointmitrethird-party-advisory
News mentions
0No linked articles in our index yet.