CVE-2026-56321

MEDIUM

Capgo - Missing Authentication Middleware on GET /private/role_bindings Endpoint

Title source: cna
STIX 2.1

Description

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.

References (2)

Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-6c9f-9v99-26ww)
https://github.com/Cap-go/capgo/security/advisories/GHSA-6c9f-9v99-26ww
Third Party Advisory third-party-advisory
VulnCheck Advisory: Capgo - Missing Authentication Middleware on GET /private/role_bindings Endpoint
https://www.vulncheck.com/advisories/capgo-missing-authentication-middleware-on-get-private-role-bindings-endpoint

Scores

CVSS v3 5.3
EPSS 0.0032
EPSS Percentile 24.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-306
Status published
Products (2)
Capgo/Capgo < 12.128.2
Capgo/Capgo 12.128.2
Published Jun 22, 2026
Tracked Since Jun 23, 2026