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Medium · 5.3 CVE-2026-56336 EUVD-2026-43232GHSA-g3p6-j9ww-hmwc

Capgo - Information Disclosure via Unauthenticated SSO check-domain Endpoint

Published Jul 12, 2026 · Updated Sep 17, 2026 · Assigned by VulnCheck

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

VendorProductAffectedFixed
Capgo Capgo < 12.128.2 12.128.2

References