CVE-2026-88864

Capgo capgo.app fails to restrict direct write access to the public.ssoproviders table exposed through Supabase PostgREST. A holder of an ordinary Capgo full API key can insert a row with status='active' and enforcesso=true, bypassing the intended backend SSO provisioning route...

n8n: SSO Instance-Role Provisioning Allows Privilege Escalation to Instance Owner

Impact n8n's Enterprise SSO instance-role provisioning maps a role claim asserted by the configured Identity Provider IdP to an n8n global role and applies it during authentication. The provisioning path did not prevent assignment of the global:owner role, unlike the token-exchange identity path,...

CVE-2026-56215

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 endpoin...

CVE-2026-56215 Capgo - Account Merge via Poisoned public.users.email in SSO Provisioning

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 endpoin...