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    CVE-2026-56227

    Capgo before 12.128.2 contains a server-side request forgery vulnerability in webhook URL validation that allows loopback and internal addresses. Organization admins can configure webhooks pointing to localhost or 127.0.0.1, and when triggered, the backend performs outbound requests to these addresses with error responses disclosed to users.

    Published:Jun 20, 2026
    Last Modified:Jun 24, 2026
    EPS:Jun 20, 2026
    EPSS Score:0.00156
    CVSS Score:5.4

    Affected Products

    Vendor
    Cap-go
    Product
    Cap-go

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

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    CVE-2026-56313 (CVSS 7.2) — Capgo before 12.128.2 contains a cross-organization account disruption vulnerability in the SSO prelink endpoi…
    CVE-2026-56308 (CVSS 8.4) — Capgo before 12.128.2 allows email address changes without requiring current password re-authentication or ver…
    CVE-2026-56281 (CVSS 5.1) — Capgo before 12.128.2 contains a sql injection vulnerability in the POST /private/admin_stats endpoint where t…
    CVE-2026-56252 (CVSS 5.3) — Capgo before 12.128.2 contains a scope isolation vulnerability in the POST /webhooks/test endpoint that allows…
    CVE-2026-56241 (CVSS 7.2) — Capgo before 12.128.2 contains a privilege escalation vulnerability where demoted super_admin users retain acc…
    CVE-2026-56238 (CVSS 8.7) — Capgo before 12.128.2 contains an information disclosure vulnerability in the Supabase PostgREST global_stats …
    CVE-2026-56303 (CVSS 8.7) — Capgo before 12.128.2 contains an information disclosure vulnerability in the find_apikey_by_value PostgreSQL …
    CVE-2026-56296 (CVSS 6.9) — Cap-go before 12.128.2 contains an information disclosure vulnerability in the public.transfer_app RPC functio…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High