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Back to active CVEs
Medium · CVSS 6.9CVE-2026-56336

Capgo - Information Disclosure via Unauthenticated SSO check-domain EndpointCVE-2026-56336

Answer in brief

CVE-2026-56336 records a Medium severity (CVSS 6.9) vulnerability in Capgo - Information Disclosure via Unauthenticated SSO check-domain Endpoint. The current sources do not mark it as known exploited. The current feed maps Capgo/Capgo (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 12, 2026Updated Sep 17, 2026Source checked Nov 1, 2026First seen by HOL Jul 12, 2026Material review Sep 17, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.9
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 6.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Capgo/Capgo (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Capgo/Capgogeneric>=0 <12.128.212.128.2

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Capgo/Capgo.
  2. 2Review the reported fix. Update Capgo/Capgo to 12.128.2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jul 12, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 17, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Jul 12, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • ag-ui-protocol ag-ui HttpAgent http.ts information disclosureAlso CWE-200

Record context

Vulnerability class
Arbitrary File Read
EPSS
Not reported
CWE IDs
CWE-200
Source
CVE List V5
Source checked
Nov 1, 2026
References
2 linked sources
Open source record