CVE-2026-101091
SiYuan versions before v3.8.4 fail to properly validate SQL statements in block query embed blocks…
- Risk score
- 51/100
- CVSS
- 7.1 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 28 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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
- See advisory
- Fix
- Upgrade the product to 3.8.4 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.1 high
- Remotely exploitable without logging in
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
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-67p9-hm94-xwf3
Original 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.
Last activity 28 Sep 2026. Patch Forecast updates every hour.