CVE-2026-59855

SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, Asset.render in app/src/asset/index.ts interpolates the unsanitized this.path value into HTML assigned to innerHTML, allowing a crafted asset link containing a double quote to break out of the src attribute, inject an...

CVE-2026-59834

SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, the block search endpoint POST /api/search/fullTextSearchBlock concatenates attacker-controlled paths values into SQL predicates used by non-SQL search modes, allowing an unauthenticated publish visitor to inject a UNI...

EUVD-2026-38161

SiYuan before v3.6.1 fails to sanitize package metadata and README content in the Bazaar marketplace, allowing malicious package authors to inject arbitrary HTML and JavaScript. Attackers can achieve remote code execution on any user browsing the Bazaar by embedding XSS payloads in package...

CVE-2026-45147

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, POST /api/tag/getTag is registered with model.CheckAuth only, omitting both model.CheckAdminRole and model.CheckReadonly, despite the handler performing a configuration write that is normally guarded by both. Any...

CVE-2026-45371

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan publish-mode Reader can mutate Conf and SQL index via 8 ungated APIs. POST /api/graph/getGraph, POST /api/graph/getLocalGraph, POST /api/sync/setSyncInterval, POST /api/storage/updateRecentDocViewTime, POST...

CVE-2026-45371

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan publish-mode Reader can mutate Conf and SQL index via 8 ungated APIs. POST /api/graph/getGraph, POST /api/graph/getLocalGraph, POST /api/sync/setSyncInterval, POST /api/storage/updateRecentDocViewTime, POST...

EUVD-2026-30358

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the kernel stores Attribute View AV / database names without any HTML escape, then a render template uses raw strings.ReplaceAlltpl, "$avName", nodeAvName to embed the name in HTML before pushing to all clients via...

CVE-2026-44670 SiYuan: Stored XSS via Attribute View name to Electron renderer RCE in SiYuan

SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, the kernel stores Attribute View AV / database names without any HTML escape, then a render template uses raw strings.ReplaceAlltpl, "$avName", nodeAvName to embed the name in HTML before pushing to all clients via...

CVE-2026-45371

CVE-2026-45371 (SiYuan) : Before v3.7.0, publish-mode Reader can mutate server state via 8 ungated APIs: POST /api/graph/getGraph, /getLocalGraph, /api/sync/setSyncInterval, /api/storage/updateRecentDocViewTime, /api/storage/updateRecentDocCloseTime, /api/storage/updateRecentDocOpenTime, /api/sto...

GHSA-GMMV-4CC5-WR9R SiYuan publish-mode Reader can mutate Conf and SQL index via 8 ungated APIs

Summary SiYuan publish-mode Reader can mutate Conf and SQL index via 8 ungated APIs POST /api/graph/getGraph, POST /api/graph/getLocalGraph, POST /api/sync/setSyncInterval, POST /api/storage/updateRecentDocViewTime, POST /api/storage/updateRecentDocCloseTime, POST...

CVE-2026-41894

SiYuan is an open-source personal knowledge management system. Prior to 3.6.5, the fix for CVE-2026-30869 only added a denylist check IsSensitivePath but did not address the root cause — a redundant url.PathUnescape call in serveExport. An authenticated attacker can use double URL encoding...

SiYuan 安全漏洞

SiYuan is an open-source personal knowledge management system developed by SiYuan itself. Versions of SiYuan 3.6.3 and earlier contained security vulnerabilities. These vulnerabilities stemmed from the /api/av/removeUnusedAttributeView endpoint, which was only protected by general authentication...

CVE-2026-40107 SiYuan Affected by Zero-Click NTLM Hash Theft and Blind SSRF via Mermaid Diagram Rendering

SiYuan is a personal knowledge management system. Prior to 3.6.4, SiYuan configures Mermaid.js with securityLevel: "loose" and htmlLabels: true. In this mode, tags with src attributes survive Mermaid's internal DOMPurify and land in SVG blocks. The SVG is injected via innerHTML with no secondary...

CVE-2026-40107 SiYuan Affected by Zero-Click NTLM Hash Theft and Blind SSRF via Mermaid Diagram Rendering

SiYuan is a personal knowledge management system. Prior to 3.6.4, SiYuan configures Mermaid.js with securityLevel: "loose" and htmlLabels: true. In this mode, tags with src attributes survive Mermaid's internal DOMPurify and land in SVG blocks. The SVG is injected via innerHTML with no secondary...

CVE-2026-40107

Summary: SiYuan before 3.6.4 configures Mermaid.js with securityLevel: loose and htmlLabels: true, allowing tags to survive DOMPurify and land in SVG blocks. The SVG is injected via innerHTML with no secondary sanitization. When a user opens a note containing a malicious Mermaid diagram, the El...

CVE-2026-34585

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a vulnerability allows crafted block attribute values to bypass server-side attribute escaping when an HTML entity is mixed with raw special characters. An attacker can embed a malicious IAL value inside a .sy document,...

EUVD-2026-17685

SiYuan Desktop: Stored XSS in imported .sy.zip content leads to arbitrary command execution...

GHSA-68P4-J234-43MV SiYuan is Vulnerable to Cross-Origin RCE via Permissive CORS Policy and JavaScript Snippet Injection

Summary A malicious website can achieve Remote Code Execution RCE on any desktop running SiYuan by exploiting the permissive CORS policy Access-Control-Allow-Origin: + Access-Control-Allow-Private-Network: true to inject a JavaScript snippet via the API. The injected snippet executes in Electron'...

EUVD-2026-17676

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a malicious website can achieve Remote Code Execution RCE on any desktop running SiYuan by exploiting the permissive CORS policy Access-Control-Allow-Origin: + Access-Control-Allow-Private-Network: true to inject a JavaScri...

PT-2026-29400

Name of the Vulnerable Software and Affected Versions SiYuan versions prior to 3.6.2 Description SiYuan is a personal knowledge management system. A crafted block attribute value can bypass server-side attribute escaping when an HTML entity is mixed with raw special characters. An attacker can...