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CVE-2026-56336

Capgo - Information Disclosure via Unauthenticated SSO check-domain Endpoint

CVSS 4.0 6.9 MEDIUMCVSS 3.1 5.3 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-56336

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-56336

Published

Capgo

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Capgo",
                    "product": "Capgo",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:github/Cap-go/capgo",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "12.128.2"
                        },
                        {
                            "version": "12.128.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON