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CVE PROGRAM SOURCE RECORD6.9 Medium

CVE-2026-105205

SiYuan before 3.8.5 Information Disclosure via /api/block/getDocInfo and getDocsInfo

Description

SiYuan before 3.8.5 contains an information disclosure vulnerability that allows publish-mode readers to learn backlink block IDs and reference counts from password-protected and publish-disabled documents by querying a published document. Attackers can send POST requests to /api/block/getDocInfo or getDocsInfo for a published document ID to obtain refIDs and refCount of hidden referencing blocks, bypassing the publish confidentiality boundary.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

siyuan-note siyuan

Default version status: unaffected

  • 0 to < 3.8.5affected
  • 3.8.5unaffected

References