Skip to content
OpenAdvisories
Medium · 5.3 CVE-2026-56235 EUVD-2026-38117GHSA-g938-xgc8-q827

Capgo - Unauthenticated Cross-Tenant Metrics Disclosure via RPC Functions

Published Jun 20, 2026 · Updated Nov 8, 2026 · Assigned by VulnCheck

Description

Cap-go capgo before 12.128.2 contains an authorization bypass in several Supabase PostgREST RPC functions (get_app_metrics, get_global_metrics, get_total_metrics) that are granted to the anon role without enforcing org membership or permission checks. An unauthenticated attacker using only the public Supabase API key (sb_publishable_*) can query arbitrary org_id values to disclose cross-tenant usage telemetry (MAU, bandwidth, installs, gets), enumerate app IDs for a target org, and determine org existence via an oracle (valid org returns metrics, invalid returns []).

Affected products

VendorProductAffectedFixed
Cap-go capgo < 12.128.2 12.128.2

References