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CVE PROGRAM SOURCE RECORD9.3 Critical

CVE-2026-56081

Cap-go - Account Lockout via 2FA Misconfiguration on Unverified Email

Description

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Cap-go capgo

Default version status: unaffected

  • 0 to < 12.128.2affected
  • 12.128.2unaffected

References