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OpenAdvisories
Medium · 4.3 CVE-2026-56310 EUVD-2026-38750

Cap-go - Authorization Bypass in Organization Members Endpoint via API Key Scope Bypass

Published Jun 24, 2026 · Updated Jun 25, 2026 · Assigned by VulnCheck

Description

Cap-go before 12.128.2 contains an authorization bypass vulnerability in the GET /organization/members endpoint that allows org-limited API keys to bypass limited_to_orgs restrictions. Attackers with org-limited API keys can read membership data including uid, email, image_url, role, and is_tmp from organizations outside their assigned scope.

Affected products

VendorProductAffectedFixed
Cap-go capgo < 12.128.2 12.128.2

References