ByteOS Network

NVD Vulnerability Details :

CVE-2026-56243

Deferred

Source-disclosure@vulncheck.com

Published At-23 Jun, 2026 | 13:16

Updated At-23 Jun, 2026 | 16:17

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	4.0	8.6	HIGH	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
Secondary	3.1	8.1	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
			N/A

Type: Secondary

Version: 4.0

Base score: 8.6

Base severity: HIGH

Vector:

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

Type: Secondary

Version: 3.1

Base score: 8.1

Base severity: HIGH

Vector:

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Type: N/A

Version:

Base score:

Base severity: N/A

Vector:

Weaknesses

CWE ID	Type	Source
CWE-288	Secondary	disclosure@vulncheck.com

CWE ID: CWE-288

Type: Secondary

Source: disclosure@vulncheck.com

References

Hyperlink	Source	Resource
https://github.com/Cap-go/capgo/security/advisories/GHSA-6g74-8cpq-g2c8	disclosure@vulncheck.com	N/A
https://www.vulncheck.com/advisories/capgo-hashed-api-key-enforcement-bypass-via-postgrest-rls-plane	disclosure@vulncheck.com	N/A
https://github.com/Cap-go/capgo/security/advisories/GHSA-6g74-8cpq-g2c8	134c704f-9b21-4f2e-91b3-4a467353bcc0	N/A