GHSA-57V5-WQX3-CGJ4 SiYuan: Database view structure (all view names, layout types and per-field visibility) is returned to anonymous readers by /api/av/getAttributeViewFieldViews

Scope note please read first This endpoint does not exist in v3.7.3 or on master. It was introduced on the development branch by commit acfc02ee8 "Improve database field visibility across views", 11020 and is live on v3.7.4-alpha.1, so it will ship in v3.7.4 unless gated first. No released stable...

EUVD-2026-52275

SiYuan: Full-content disclosure of publish-disabled documents via getHeadingTransaction endpoints publish mode: reader-reachable rendered DOM with no publish-access check...

CVE-2026-82652 SiYuan before v3.8.1 Information Disclosure via Publish Access

SiYuan before v3.8.1 fails to filter invisible-tier content from SQL embed blocks, attribute-view keys, and attribute-view backlinks in publish mode. Anonymous readers can enumerate invisible content through these three listing mechanisms despite admin configuration marking content unlisted...

CVE-2026-68587

SiYuan versions before v3.7.3 contain an information disclosure vulnerability in the getHeadingDeleteTransaction, getHeadingLevelTransaction, and getHeadingInsertTransaction endpoints that return rendered block DOM without publish-access checks. Anonymous readers or publish RoleReader tokens can...

CVE-2026-68587

SiYuan has a information-disclosure vulnerability affecting versions before v3.7.3. The flaw lies in the getHeadingDeleteTransaction, getHeadingLevelTransaction, and getHeadingInsertTransaction endpoints, which return rendered block DOM without publish-access checks. Consequently, anonymous reade...