CVE-2026-56243

High

Description

Capgo before 12.128.2 contains a security control bypass vulnerability where the PostgREST/RLS plane accepts plaintext API keys through the capgkey header despite enforce_hashed_api_keys being enabled. Attackers can bypass org-level hashed-key enforcement by sending plaintext API keys directly to the PostgREST/RLS plane to access protected resources.

SeverityHigh
CVSS8.1
Exploit probability—
ProductCapgo
PublishedJun 23, 2026
First seenJun 23, 2026
Weakness typeCWE-288CWE-288

How to fix

Update
  • Capgo Capgo12.128.2 or later

Affected products

ProductAffected versionsFixed in
Capgo Capgov < 12.128.212.128.2

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.

CVE-2026-56243 · Capgo · Dark Radar