{"id":"CVE-2026-101091","title":"SiYuan versions before v3.8.4 fail to properly validate SQL statements in block query embed blocks executed against siyuan.db","summary":"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 durin…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N","cwe":["CWE-89"],"vendor":"siyuan-note","product":"siyuan","affected":["siyuan < 3.8.4"],"published":"2026-09-28","updated":"2026-09-29","sourceUpdated":"2026-09-29T19:17:19.330","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-101091","references":[{"url":"https://github.com/siyuan-note/siyuan/commit/e8ace0c89182c7ee1a1298ff2a849bb6a83dfdec","label":"disclosure@vulncheck.com"},{"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-67p9-hm94-xwf3","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/siyuan-before-3.8.4-sql-injection-via-block-query-embed","label":"disclosure@vulncheck.com"},{"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-67p9-hm94-xwf3","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-29T18:01:34.331649Z"},"epss":0.00315,"epssPercentile":0.243,"ingestedAt":"2026-09-28T22:22:13.607Z","slug":"CVE-2026-101091","body":"## Overview\n\nSiYuan 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":39.1,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":212958,"id":"CVE-2026-101091","ts":1790707437160,"field":"exploit_available","old":"false","new":"true"}]}