Unrated severityNVD Advisory· Published Jul 12, 2026· Updated Jul 14, 2026
Capgo - Information Disclosure via Unauthenticated SSO check-domain Endpoint
CVE-2026-56336
Description
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
1Patches
Vulnerability mechanics
References
2- github.com/Cap-go/capgo/security/advisories/GHSA-c5jf-5wxg-mgrqmitrevendor-advisory
- www.vulncheck.com/advisories/capgo-information-disclosure-via-unauthenticated-sso-check-domain-endpointmitrethird-party-advisory
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