CVE-2026-56215High· 8.3▾ MidnightPoC availableCapgo before 12.128.12 allows authenticated users to modify their mutable public.users.email to arbitrary addresses, which the SSO provisioning endpoint trusts as an account-merge key. Attackers can pre-position their account with a vict…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 45.7 · 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. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.4%
Capgo before 12.128.12 allows authenticated users to modify their mutable public.users.email to arbitrary addresses, which the SSO provisioning endpoint trusts as an account-merge key. Attackers can pre-position their account with a victim's corporate SSO email, causing the provision-user endpoint to merge the victim's SSO identity into the attacker-controlled account.
Capgo < 12.128.12Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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CVE-2026-56073Critical· 9.4Cap-go - OTP Bypass via Response Manipulation in Email Verification
CVE-2026-56080Medium· 4.9Cap-go - Authentication Logic Flaw in Enforce Password Policy
CVE-2026-56081Critical· 9.1Cap-go - Account Lockout via 2FA Misconfiguration on Unverified Email
CVE-2026-56079Medium· 6.5Capgo - Cross-Tenant Authorization Bypass via PostgREST Webhook Access
CVE-2026-56082High· 7.5Capgo - Unauthenticated Cross-Tenant Billing Log Tampering via public.record_build_time RPC