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CVE-2026-56313 is an improper authorization vulnerability in Capgo before version 12.128.2 affecting the SSO prelink workflow. The flaw resides in the prelink-users endpoint, which can be invoked by an enterprise administrator with org.update_settings permission and an active SSO provider to prelink users based on email-domain matching without being properly constrained to the attacker's own organization. As a result, the endpoint can delete password identities for users in other organizations whose email addresses match the configured SSO provider domain. This permanently removes affected users' email-based authentication path and alters their account login state across organizational boundaries.
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No public exploit code observed for this vulnerability.
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Cross-references every affected SKU, including bundled OEM variants.
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