CVE-2026-56321

Capgo (backend Supabase edge functions) before 12.128.2 does not apply the global authentication middleware to the GET /private/role_bindings/:org_id endpoint, unlike the POST and DELETE role_bindings routes, so unauthenticated requests reach the handler instead of being rejected at the middleware layer. The handler still performs its own authorization check and returns Unauthorized, so no direct data exposure occurs; the flaw is inconsistent authentication enforcement across HTTP methods that could enable authorization bypass if the handler logic changes.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Cap-go/capgo/security/advisories/GHSA-6c9f-9v99-26ww
https://www.vulncheck.com/advisories/capgo-missing-authentication-middleware-on-get-private-role-bindings-endpoint
https://github.com/Cap-go/capgo/security/advisories/GHSA-6c9f-9v99-26ww

Configurations

No configuration.

History

23 Jun 2026, 15:16

Type	Values Removed	Values Added
References	~~() https://github.com/Cap-go/capgo/security/advisories/GHSA-6c9f-9v99-26ww -~~	() https://github.com/Cap-go/capgo/security/advisories/GHSA-6c9f-9v99-26ww -

22 Jun 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-22 22:16

Updated : 2026-06-23 15:16

NVD link : CVE-2026-56321

Mitre link : CVE-2026-56321

CVE.ORG link : CVE-2026-56321

JSON object : View

Products Affected

No product.

CWE

CWE-306

Missing Authentication for Critical Function

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