Is CVE-2026-73048 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-73048?

CVE-2026-73048 has a CVSS v3 severity of MEDIUM (5.8).

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CVE-2026-73048

Description

SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the getRefIDsByFileAnnotationID endpoint that returns block identifiers citing PDF annotations without publish-access filtering. Attackers can extract block identifiers from restricted documents by supplying annotation identifiers visible in published pages, revealing citation relationships across forbidden and password-protected tiers.