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.
SQL Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.1 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
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