CVE-2026-56081: Cap-Go Capgo

Critical severity, CVSS 9.1. EPSS: 0.6% chance of exploitation in the next 30 days.

Cap-go before 12.128.2 contains an authentication logic flaw that lets an attacker register and control an account bound to a victim's email address before that email is verified. By enabling two-factor authentication on the pre-registered account, the attacker gains control over the account claimed under the victim's identity, allowing them to read and modify its state and enforce organization-level policies, while the legitimate user is denied access to the account tied to their own email.

Affected products

• Cap-Go Capgo: before 12.128.2 (fixed in 12.128.2)

Published 2026-06-19. Last modified 2026-06-22.