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CVE-2026-32767

SiYuan: Authorization Bypass Allows Arbitrary SQL Execution via Search API

Published: Mar 20, 2026Updated: Mar 23, 2026 Sources: CVE List NVD GHSACWE-89
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
0.5%
Top 58.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

SiYuan is a personal knowledge management system. Versions 3.6.0 and below contain an authorization bypass vulnerability in the /api/search/fullTextSearchBlock endpoint. When the method parameter is set to 2, the endpoint passes user-supplied input directly as a raw SQL statement to the underlying SQLite database without any authorization or read-only checks. This allows any authenticated user — including those with the Reader role — to execute arbitrary SQL statements (SELECT, DELETE, UPDATE, DROP TABLE, etc.) against the application's database. This is inconsistent with the application's own security model: the dedicated SQL endpoint (/api/query/sql) correctly requires both CheckAdminRole and CheckReadonly middleware, but the search endpoint bypasses these controls entirely. This issue has been fixed in version 3.6.1.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-89CWE-863

Affected Products

siyuansiyuan-note
github.com/siyuan-note/siyuan/kernelGoOSS Libraries
siyuanb3log
On-premWeb App
Web & CMS Plugins / cms-core
gopackage-ecosystemOSS Libraries
b3logoss-projectWeb & CMS Pluginsaka b3log

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Initial Access
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References

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-j7wh-x834-p3r7
github.com
https://github.com/siyuan-note/siyuan/issues/17209
github.com
https://github.com/siyuan-note/siyuan/commit/d5e2d0bce0dffef5f61bd8066954bc2d41181fc5
github.com
and 3 more references View all →

Timeline

Published
Mar 20, 2026
Last Updated
Mar 23, 2026

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