CVE-2026-56223High· 8.7▾ MidnightPoC availableCapgo before 12.128.2 contains a cross-domain SSO account takeover vulnerability in the provision-user endpoint that allows attackers to merge arbitrary victim accounts based on email match without validating SSO provider domain authoriz…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 47.8 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 17.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.4%
Capgo before 12.128.2 contains a cross-domain SSO account takeover vulnerability in the provision-user endpoint that allows attackers to merge arbitrary victim accounts based on email match without validating SSO provider domain authorization. An attacker with enterprise org admin access and a malicious IdP can forge SAML assertions containing victim email addresses to trigger account merge and gain full access to victim accounts, organizations, and data.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-56332Medium· 4.7Capgo before 12.128.2 contains an open redirect vulnerability in the confirm-signup endpoint that allows attackers to redirect users to arbitrary external websites
CVE-2026-56212Low· 3.8Capgo - Improper 2FA Enforcement Logic via Team Security Settings
CVE-2026-56305High· 8.3Capgo - Authentication Bypass in Password Change via Missing Current Password Validation
CVE-2026-56256High· 7.1Capgo - Two-Factor Authentication Bypass via Organization Management API
CVE-2026-56336Medium· 5.3Capgo before 12.128.2 contains an information disclosure vulnerability in the unauthenticated /private/sso/check-domain endpoint that returns internal org_id and provider_id values
CVE-2026-56281Low· 3.8Capgo before 12.128.2 contains a sql injection vulnerability in the POST /private/admin_stats endpoint where the limit parameter is destructured from unvalidated request body and interpolated directly into Cloudflare Analytics Engine SQL…