CVE-2026-85226

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As a result, an authenticated user could receive correlation results referring to attributes or events that the user was not authorized to access. </p>\n<p>The vulnerable correlation collection path did not take the requesting user into account. The patch changes the correlation collector to accept the current user and filters the resulting attribute identifiers through MISP's existing <code>fetchAttributesSimple()</code> authorization logic, which evaluates event-, attribute-, object-, distribution-, and sharing-group-level restrictions against the live data. </p>\n<p>The issue also affected paths relying on previously stored correlation data. Because the OnDemand engine does not maintain the stored correlation table, its denormalized access-control information could be stale. 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