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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-74904

SiYuan before v3.7.4 Missing Authorization via block API

Description

SiYuan before v3.7.4 is missing authorization checks in 17 block metadata/content endpoints in kernel/api/block.go (including getRefText, checkBlockExist, and getBlockBreadcrumb). These handlers are gated only by basic authentication (model.CheckAuth) and lack publish-access filtering, allowing anonymous publish-mode readers to disclose private block content-derived text, structural metadata, and existence information for arbitrary block IDs across the workspace.

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 < 3.7.4affected
  • 3.7.4unaffected
pkg:golang/github.com/siyuan-note/siyuan/kernel

References