EUVD-2026-43232
GHSA-g3p6-j9ww-hmwc
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable unauthenticated endpoint (AV:N, PR:N, AC:L), no scope change, low confidentiality impact only - leaks internal IDs, no integrity or availability effect.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Unauthenticated information disclosure in Capgo's /private/sso/check-domain endpoint exposes internal org_id and provider_id values to any network-reachable attacker. All Capgo deployments prior to version 12.128.2 are affected, with the vulnerable endpoint accessible without credentials. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions - remote unauthenticated exploitation against default configurations of Capgo. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 6.9 (AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N) reflects a network-reachable, zero-complexity exploit with low confidentiality impact and no integrity or availability consequence. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An external attacker iterates over a wordlist of corporate email domains, submitting each to the unauthenticated /private/sso/check-domain endpoint on a target Capgo instance and collecting the returned org_id and provider_id values. Within minutes, the attacker builds a domain-to-organization mapping usable to craft convincing spear-phishing lures or to enumerate SSO provider configurations in preparation for identity-based attacks against specific Capgo tenants. … |
| Remediation | Vendor-released patch: Capgo 12.128.2. … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
Authentication bypass in Capgo before 12.128.2 lets remote unauthenticated attackers mint arbitrary API keys by tamperin
Cross-domain SSO account takeover in Capgo before 12.128.2 allows an attacker with enterprise org admin access and a mal
Account pre-registration hijack in Capgo before 12.128.2 lets a remote unauthenticated attacker claim an account under a
Authentication bypass in Capgo prior to version 12.128.2 lets attackers defeat email-based OTP verification by tampering
Rate-limit bypass in Capgo versions prior to 12.128.2 lets remote unauthenticated attackers flood the channel_self endpo
Cross-tenant data poisoning in Supabase Capgo before 12.128.2 allows remote unauthenticated attackers to corrupt billing
Server-side privilege escalation in Capgo before 12.128.2 lets authenticated users holding build permissions abuse a pat
Unauthenticated information disclosure in Capgo before 12.128.2 lets remote attackers query the /functions/v1/channel_se
Account takeover in Capgo before 12.128.2 stems from a password-change endpoint that omits current-password validation (
Information disclosure in Capgo (Capacitor live-update/OTA platform) before 12.128.2 lets unauthenticated callers abuse
Unauthenticated information disclosure in Capgo before 12.128.2 lets remote attackers read organization RBAC role bindin
Cross-tenant authorization bypass in Capgo before 12.128.2 lets authenticated users impersonate another tenant's limited
Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
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External POC / Exploit Code
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