High 7.1Published Sep 28, 2026

CVE-2026-101091SiYuan before v3.8.4 SQL Injection via Block Query Embed

Updated under an hour ago (2026-10-19 06:10 UTC)

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It affects siyuan-note siyuan. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.26%, higher than 16% of scored CVEs.

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Every CVE for siyuan-note siyuan

Exploited in the last 30 days

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: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Weakness (CWE): CWE-89
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.26% (percentile 16)
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Sep 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

siyuan-note siyuan siyuan_note:siyuan (from the name)	before 3.8.4; 3.8.4 not affected	CNA record

References

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-67p9-hm94-xwf3vendor-advisory
https://github.com/siyuan-note/siyuan/commit/e8ace0c89182c7ee1a1298ff2a849bb6a83dfdecpatch
https://www.vulncheck.com/advisories/siyuan-before-3.8.4-sql-injection-via-block-query-embedthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.