CVE-2026-68585: Siyuan-Note Siyuan

Medium severity, CVSS 5.8. EPSS: 0.3% chance of exploitation in the next 30 days.

SiYuan versions before v3.7.3 contain a metadata disclosure vulnerability in the /api/block/getBlockInfo endpoint that returns document root metadata including title for publish-forbidden documents without publish-access checks. Anonymous readers or publish RoleReader tokens can supply a block ID to retrieve the title, notebook, path, root ID, and icon of documents administrators marked as excluded from publishing.

Affected products

• Siyuan-Note Siyuan: before 3.7.3 (fixed in 3.7.3)

Published 2026-08-03. Last modified 2026-08-26.