SiYuan: Anonymous publish-password authentication bypass via getHeadingChildrenDOM / getHeading*Transaction / getBacklinkDoc (publish mode)

CVE: This vulnerability corresponds to CVE-2026-68584. Summary SiYuan's publish mode defines a "protected" access level: a document that is publicly listed but requires a password to read per the product's own UI help text, protected = "Publicly visible, requires password to access". The password...

CVE-2026-68584

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-2026-68587

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-2026-68584

CVE-2026-68584 affects SiYuan before v3.7.3. An authentication bypass exists in publish mode: content endpoints that return headings or backlinks (getHeadingChildrenDOM, getHeading*Transaction, getBacklinkDoc) do not enforce the password check, even though the main getDoc endpoint is protected. A...

PT-2026-67404

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.7.3 Description An information disclosure issue exists where the endpoints 'getHeadingDeleteTransaction', 'getHeadingLevelTransaction', and 'getHeadingInsertTransaction' return rendered block DOM without performing...