CVE-2026-56243
Capgo - Hashed API Key Enforcement Bypass via PostgREST/RLS Plane
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.
INFO
Published Date :
June 23, 2026, 12:12 p.m.
Last Modified :
June 23, 2026, 12:12 p.m.
Remotely Exploit :
Yes !
Source :
VulnCheck
Affected Products
The following products are affected by CVE-2026-56243
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 |
Solution
- Update Capgo to version 12.128.2 or later.
- Ensure API keys are properly hashed.
- Remove plaintext API keys from headers.
- Verify RLS plane enforcement settings.
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CVE-2026-56243 vulnerability anywhere in the article.