{"id":"CVE-2026-56081","title":"Cap-go - Account Lockout via 2FA Misconfiguration on Unverified Email","summary":"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-register…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cvssSource":"cna","cwe":["CWE-640"],"vendor":"Cap-go","product":"capgo","affected":["capgo < 12.128.2"],"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"total","timestamp":"2026-06-22T17:48:44.967855Z"},"exploitAvailable":true,"published":"2026-06-19","updated":"2026-11-08","sourceUpdated":"2026-11-08T14:05:29.349Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-56081","references":[{"url":"https://github.com/Cap-go/capgo/security/advisories/GHSA-j4cx-5pw6-5v5j","label":"GitHub Security Advisory (GHSA-j4cx-5pw6-5v5j)"},{"url":"https://www.vulncheck.com/advisories/cap-go-account-lockout-via-2fa-misconfiguration-on-unverified-email","label":"VulnCheck Advisory: Cap-go - Account Lockout via 2FA Misconfiguration on Unverified Email"}],"tags":["cve.org","exploit-available"],"epss":0.00433,"epssPercentile":0.37832,"ingestedAt":"2026-11-08T14:51:22.371Z","slug":"CVE-2026-56081","body":"## Overview\n\nCap-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.\n\n## Affected\n\n- `capgo < 12.128.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"abyssal","depthScore":62,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}