Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-107278

Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-20 Validación incorrecta de entrada
Fecha de publicación:
07/10/2026
Última modificación:
07/10/2026

Descripción

*** Pendiente de traducción *** MISP contains a validation flaw in its object synchronization logic. When a MISP Object is created without a description, it is stored correctly on the originating instance. However, when that object is replicated to another MISP instance via the sync mechanism, the receiving instance&amp;#39;s validation rule rejects the object because the description field is empty. As a result, the receiving instance silently drops the object along with all of its associated attributes, leading to loss of threat-intelligence data.<br /> <br /> Preconditions:<br /> <br /> - Two or more MISP instances are configured to synchronize objects.<br /> <br /> - A user with object-creation privileges creates an object without supplying a description.<br /> <br /> - The object is subsequently synced to a peer instance.<br /> <br /> Impact:<br /> <br /> - Valid objects and their attributes are silently discarded on receiving instances, causing data-integrity loss in the threat-intelligence pipeline.<br /> <br /> - The issue is not externally exploitable in a traditional sense but can be triggered by any authorized user who creates objects without descriptions, resulting in unintended data loss across the sync topology.<br /> <br /> Affected:

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