9.3
/ 10
CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
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.
Basic Information
ID
CVE-2026-56081
Source
VulnCheck
Published
Jun 19, 2026 at 21:39
Affected Product
Vendor
Cap-go
Product
capgo
Affected Versions
Cap-go capgo 0