CVE-2026-34453
Last modified
CVE-2026-34453 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 1.23% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| B3log | Siyuan | < 3.6.2 |
References
- https://github.com/siyuan-note/siyuan/issues/17246Issue Tracking
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-c77m-r996-jr3qExploit, Vendor Advisory
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-c77m-r996-jr3qExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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