High severity7.1NVD Advisory· Published Sep 28, 2026· Updated Sep 28, 2026

CVE-2026-101091

Description

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.

Affected products

Siyuan Note/Siyuanllm-fuzzy
Range: <3.8.4

Patches

Vulnerability mechanics

References

github.com/siyuan-note/siyuan/commit/e8ace0c89182c7ee1a1298ff2a849bb6a83dfdecnvd
github.com/siyuan-note/siyuan/security/advisories/GHSA-67p9-hm94-xwf3nvd
www.vulncheck.com/advisories/siyuan-before-3.8.4-sql-injection-via-block-query-embednvd

News mentions

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cvss	0.461
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patch	-0.070
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