PT-2026-29381 · Siyuan Note · Siyuan

Published 2026-03-31 · Updated 2026-03-31 · CVE-2026-34453

Mitre

CVSS v3.1

7.5

High

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SiYuan is a personal knowledge management system. Prior to version 3.6.2, the publish service exposes bookmarked blocks from password-protected documents to unauthenticated visitors. In publish/read-only mode, /api/bookmark/getBookmark filters bookmark results by calling FilterBlocksByPublishAccess(nil, ...). Because the filter treats a nil context as authorized, it skips the publish password check and returns bookmarked blocks from documents configured as Protected. As a result, anyone who can access the publish service can retrieve content from protected documents without providing the required password, as long as at least one block in the document is bookmarked. This issue has been patched in version 3.6.2.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2026-34453

Affected Products

Siyuan

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-34453 · Security Note
• https://github.com/siyuan-note/siyuan/issues/17246 · Note
• https://github.com/siyuan-note/siyuan/releases/tag/v3.6.2 · Note
• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-c77m-r996-jr3q · Note