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Medium · 5.3 CVE-2026-56213 EUVD-2026-38099GHSA-5495-g4j9-gjwq

Capgo - Unauthenticated Cross-Tenant Metrics Poisoning via upsert_version_meta RPC

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

Description

Capgo before 12.128.2 contains an authorization bypass vulnerability in the public.upsert_version_meta SECURITY DEFINER function exposed via PostgREST RPC, allowing unauthenticated attackers to insert arbitrary rows into version_meta for any app_id. Attackers can exploit this by calling the RPC endpoint with a public anon key to poison storage metrics, causing persistent false data in dashboards and triggering incorrect alerts across victim applications.

Affected products

VendorProductAffectedFixed
Capgo Capgo < 12.128.2 12.128.2

References