CVE-2026-56213CWE-862

Capgo - Unauthenticated Cross-Tenant Metrics Poisoning via upsert_version_meta RPC

Medium · published June 20, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
27.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00353 · 27.7th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-06-20T00:14Z
EPSS history
Timeline
  • 20 JUN 00:14Z
    Capgo - Unauthenticated Cross-Tenant Metrics Poisoning via upsert_version_meta RPC
    cvelistv5