Is CVE-2026-73609 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-73609?

CVE-2026-73609 has a CVSS v3 severity of MEDIUM (5.8).

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CVE-2026-73609

Description

SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the getBookmarkLabels endpoint that returns all bookmark labels in the workspace without publish-access filtering. Anonymous readers and publish-mode readers can obtain the complete bookmark vocabulary across the workspace, disclosing subject matter and organizational information from inaccessible documents.