CVE-2026-56336: Capgo

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Capgo 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. Attackers can enumerate email domains to build mappings of domains to organization UUIDs and SSO provider identifiers, enabling reconnaissance against Capgo tenants.

Affected products

• Capgo Capgo: before 12.128.2 (fixed in 12.128.2)

Published 2026-07-12. Last modified 2026-09-17.