GO-2026-6379 SiYuan: Cross-boundary content disclosure via getBacklinkDoc/getBackmentionDoc (publish mode): reader-reachable rendered DOM of publish-forbidden docs; sibling list endpoints are filtered in github.com/siyuan-note/siyuan/kernel

SiYuan: Cross-boundary content disclosure via getBacklinkDoc/getBackmentionDoc publish mode: reader-reachable rendered DOM of publish-forbidden docs; sibling list endpoints are filtered in github.com/siyuan-note/siyuan/kernel...

CVE-2026-68586

SiYuan before v3.7.3 is affected by a bug where the content endpoints /api/ref/getBacklinkDoc and /api/ref/getBackmentionDoc do not apply publish-access filters. Although the related backlink list endpoints filter publish-forbidden documents, the content endpoints are gated only by CheckAuth, all...

CVE-2026-68584: Authentication Bypass Using an Alternate Path or Channel

SiYuan versions before v3.7.3 contain an authentication bypass vulnerability in publish mode where content-returning endpoints getHeadingChildrenDOM, getHeadingTransaction, and getBacklinkDoc perform no password check despite protecting the primary getDoc endpoint. Anonymous attackers can retriev...

CVE-2026-68586: Missing Authorization

SiYuan before v3.7.3 fails to apply publish-access filters to the getBacklinkDoc and getBackmentionDoc content endpoints /api/ref/getBacklinkDoc and /api/ref/getBackmentionDoc. While the corresponding backlink list endpoints filter publish-forbidden documents, the content endpoints gated only by...

PT-2026-67401

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.7.3 Description An authentication bypass exists in publish mode where specific content-returning endpoints do not perform password checks, even though the primary getDoc endpoint is protected. Anonymous attackers can...