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High · 8.8 CVE-2026-56230 EUVD-2026-40427GHSA-fmx4-fw5w-86gg

Capgo - Broken Object Level Authorization via x-limited-key-id Header

Published Jun 30, 2026 · Updated Jul 1, 2026 · Assigned by VulnCheck

Description

Capgo before 12.128.2 contains a broken object level authorization vulnerability in middlewareKey() that accepts the client-controlled x-limited-key-id header without validating ownership, allowing authenticated users to adopt cross-tenant limited keys. Attackers can supply another tenant's limited key ID to bypass authorization checks and access unauthorized cross-tenant resources across multiple API endpoints.

Affected products

VendorProductAffectedFixed
Capgo Capgo < 12.128.2 12.128.2

References