CVE-2026-56243

HIGH EPSS 19.1%

Published Jun 23, 20261w ago · Modified Jun 23, 20261w ago

8.6 CVSS 4.0

High

Published Jun 23, 2026 1w ago

Last Modified Jun 23, 2026 1w ago

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.

CVSS Details

Base Score

8.6

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

19.1% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-288

References 2

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.