CVE-2026-56243

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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Cap-go/capgo/security/advisories/GHSA-6g74-8cpq-g2c8
https://www.vulncheck.com/advisories/capgo-hashed-api-key-enforcement-bypass-via-postgrest-rls-plane
https://github.com/Cap-go/capgo/security/advisories/GHSA-6g74-8cpq-g2c8

Configurations

No configuration.

History

23 Jun 2026, 16:17

Type	Values Removed	Values Added
References	~~() https://github.com/Cap-go/capgo/security/advisories/GHSA-6g74-8cpq-g2c8 -~~	() https://github.com/Cap-go/capgo/security/advisories/GHSA-6g74-8cpq-g2c8 -

23 Jun 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-23 13:16

Updated : 2026-06-23 16:17

NVD link : CVE-2026-56243

Mitre link : CVE-2026-56243

CVE.ORG link : CVE-2026-56243

JSON object : View

Products Affected

No product.

CWE

CWE-288

Authentication Bypass Using an Alternate Path or Channel

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