CVE-2026-73041

SiYuan versions before v3.7.4 fail to validate or escape annotation fields written to disk by the setFileAnnotation endpoint. Attackers can inject malicious markup into annotation fields that execute as script in the PDF renderer with full Node.js access when a user opens an annotated PDF.

CVSS v3 9.0 CRITICAL

9.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.3 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fqpw-c3pj-w8g9
https://www.vulncheck.com/advisories/siyuan-before-remote-code-execution-via-pdf-annotations
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fqpw-c3pj-w8g9

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-15 22:16

Updated : 2026-08-26 17:05

NVD link : CVE-2026-73041

Mitre link : CVE-2026-73041

CVE.ORG link : CVE-2026-73041

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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