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CVE-2026-74904

SiYuan before v3.7.4 Missing Authorization via block API PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
siyuan-note / siyuanaffected 0 before 3.7.4; unaffected 3.7.4

CWE

CWE-862

References

ADP enrichment

CISA-ADP

No English description supplied.