CVE-2026-56213

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.

References

https://www.vulncheck.com/advisories/capgo-unauthenticated-cross-tenant-metrics-poisoning-via-upsert-version-meta-rpc

https://github.com/Cap-go/capgo/security/advisories/GHSA-g4hx-x8gc-x6rw

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS