CVE-2026-56243

Capgo - Hashed API Key Enforcement Bypass via PostgREST/RLS Plane

HIGH
8.1
CVSS Score
Published: June 23, 2026 at 12:12 PM UTC
Updated: October 25, 2026 at 11:10 PM UTC
1 product affected across 1 vendorCapgo

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Severity
HIGH8.1
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 12.128.2
Vendor states this is fixed in 12.128.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.1HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-288

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