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CVE-2026-93591

SiYuan before 3.8.3 SQL Injection via unescaped tag in graph.go

CVSS 4.0 7.2 HIGHCVSS 3.1 7.6 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-93591

Published

SiYuan versions before 3.8.3 contain an SQL injection vulnerability in the graph.go query2Stmt function where tag values are concatenated raw into SQL string literals without escaping single quotes. A publish-mode reader or anonymous visitor can inject SQL via inline HTML span tags in the getGraph endpoint to execute arbitrary queries on the read-write database and exfiltrate private data across notebooks.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-93591

Published

siyuan

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "siyuan-note",
                    "product": "siyuan",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:golang/github.com/siyuan-note/siyuan/kernel",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "3.8.3"
                        },
                        {
                            "version": "3.8.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON