Vulnerability DatabaseCVE-2026-56243
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2026-56243
Published:June 23, 2026
Updated:June 29, 2026
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.
Affected Packages
https://github.com/Cap-go/capgo.git (GITHUB):
Affected version(s) >=asc-key-helper-1.1.0-rc.2 <12.128.2
Fix Suggestion:
Update to version 12.128.2
Related Resources (2)
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
Do you need more information?
Contact Us
CVSS v4
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Authentication Bypass Using an Alternate Path or Channel
CWE-288
EPSS
Base Score:
0.27