CVE-2026-34453

7.5 HIGH
Published: March 31, 2026 Modified: April 03, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/siyuan-note/siyuan/issues/17246
Source: security-advisories@github.com
Issue Tracking
https://github.com/siyuan-note/siyuan/releases/tag/v3.6.2
Source: security-advisories@github.com
Release Notes
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-c77m-r996-jr3q
Source: security-advisories@github.com
Exploit Vendor Advisory
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-c77m-r996-jr3q
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Vendor Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
3.5%
88th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

b3log