CVE-2026-101091

SiYuan versions before v3.8.4 fail to properly validate SQL statements in block query embed blocks executed against siyuan.db. Attackers can craft malicious .sy documents with non-read-only SQL statements that execute automatically during background indexing, rendering, or export operations without authentication.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan/commit/e8ace0c89182c7ee1a1298ff2a849bb6a83dfdec
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-67p9-hm94-xwf3
https://www.vulncheck.com/advisories/siyuan-before-3.8.4-sql-injection-via-block-query-embed
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-67p9-hm94-xwf3

Configurations

No configuration.

History

29 Sep 2026, 19:17

Type	Values Removed	Values Added
References	~~() https://github.com/siyuan-note/siyuan/security/advisories/GHSA-67p9-hm94-xwf3 -~~	() https://github.com/siyuan-note/siyuan/security/advisories/GHSA-67p9-hm94-xwf3 -

28 Sep 2026, 22:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-28 22:17

Updated : 2026-09-29 19:17

NVD link : CVE-2026-101091

Mitre link : CVE-2026-101091

CVE.ORG link : CVE-2026-101091

JSON object : View

Products Affected

No product.

CWE

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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