CVE-2026-104410: Missing Authorization in siyuan-note siyuan
SiYuan before 3.8.5 contains an information disclosure vulnerability that allows publish readers to read password-protected and publish-disabled database rows via the /api/export/preview endpoint. Attackers can request an export preview of a public document embedding a database view to obtain protected rows' primary-key text and cell values.
AI Analysis
Technical Summary
CVE-2026-104410 describes a missing authorization vulnerability in SiYuan note-taking software prior to version 3.8.5. The vulnerability exists in the /api/export/preview endpoint, which does not properly enforce access controls, allowing unauthorized publish readers to access data from password-protected and publish-disabled database rows. Attackers can exploit this by requesting an export preview of a public document embedding a database view, thereby obtaining sensitive primary-key text and cell values from protected rows.
Potential Impact
Unauthorized users can access sensitive information from protected database rows that should be restricted, leading to information disclosure. This compromises confidentiality of data intended to be password-protected or unpublished.
Mitigation Recommendations
Upgrade SiYuan to version 3.8.5 or later, where this vulnerability has been fixed. No other mitigation guidance is provided, so applying the official fix is the recommended action.
CVE-2026-104410: Missing Authorization in siyuan-note siyuan
Description
SiYuan before 3.8.5 contains an information disclosure vulnerability that allows publish readers to read password-protected and publish-disabled database rows via the /api/export/preview endpoint. Attackers can request an export preview of a public document embedding a database view to obtain protected rows' primary-key text and cell values.
CVSS v4.0
Score 8.7high
Affected software
siyuan-note
siyuan
pkg:github/siyuan-note/siyuanRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-104410 describes a missing authorization vulnerability in SiYuan note-taking software prior to version 3.8.5. The vulnerability exists in the /api/export/preview endpoint, which does not properly enforce access controls, allowing unauthorized publish readers to access data from password-protected and publish-disabled database rows. Attackers can exploit this by requesting an export preview of a public document embedding a database view, thereby obtaining sensitive primary-key text and cell values from protected rows.
Potential Impact
Unauthorized users can access sensitive information from protected database rows that should be restricted, leading to information disclosure. This compromises confidentiality of data intended to be password-protected or unpublished.
Mitigation Recommendations
Upgrade SiYuan to version 3.8.5 or later, where this vulnerability has been fixed. No other mitigation guidance is provided, so applying the official fix is the recommended action.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-02T00:44:44.528Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abf99ada43b0b3b89b26744
Added to database: 10/02/2026, 11:46:53 UTC
Last enriched: 10/02/2026, 12:18:10 UTC
Last updated: 10/02/2026, 17:49:13 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.