High
SiYuan before v3.8.4 SQL Injection via dailyNoteSavePath
Type: advisorySources: OSV
SiYuan before v3.8.4 contains a SQL injection vulnerability in the graph query endpoint where the dailyNoteSavePath parameter is concatenated into SQL without escaping. Unauthenticated attackers on published sites with auth disabled can inject SQL via UNION SELECT to extract arbitrary database rows from all notebooks.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-100644
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 16:31 UTC · Revision 1
Source evidence
SiYuan before v3.8.4 SQL Injection via dailyNoteSavePath
core-osv · Original sourcePublished 26 Sept 2026, 13:23 UTC
SiYuan before v3.8.4 contains a SQL injection vulnerability in the graph query endpoint where the dailyNoteSavePath parameter is concatenated into SQL without escaping. Unauthenticated attackers on published sites with auth disabled can inject SQL via UNION SELECT to extract arbitrary database rows from all notebooks.
osv:CVE-2026-100644
Complete source record
{
"id": "84bc4d8528a5a3931d2379c5e399e7f56dd7442161bd292ed7feb1d51c3e9733",
"url": "https://osv.dev/vulnerability/CVE-2026-100644",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "SiYuan before v3.8.4 SQL Injection via dailyNoteSavePath",
"summary": "SiYuan before v3.8.4 contains a SQL injection vulnerability in the graph query endpoint where the dailyNoteSavePath parameter is concatenated into SQL without escaping. Unauthenticated attackers on published sites with auth disabled can inject SQL via UNION SELECT to extract arbitrary database rows from all notebooks.",
"evidence": "osv:CVE-2026-100644",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-100644",
"aliases": [
"CVE-2026-100644",
"GHSA-xr4h-j7cg-q8pc"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/siyuan-note/siyuan",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "9f775e8a12daef8255556097396f9b2739078892"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "3.8.4"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "3.8.4"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100644.json"
}
}
],
"modified": "2026-10-28T02:30:20.927563836Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100644.json",
"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-xr4h-j7cg-q8pc",
"https://nvd.nist.gov/vuln/detail/CVE-2026-100644",
"https://www.vulncheck.com/advisories/siyuan-before-3.8.4-sql-injection-via-dailynotesavepath"
],
"provider_metadata": {
"cwe_ids": [
"CWE-89"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100644.json"
}
},
"related_cves": [
{
"value": "CVE-2026-100644",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 487178,
"published_at": "2026-09-26T13:23:16.086+00:00"
}