Vulnerability Description
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 Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fqpw-c3pj-w8g9
- https://www.vulncheck.com/advisories/siyuan-before-remote-code-execution-via-pdf
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fqpw-c3pj-w8g9
FAQ
What is CVE-2026-73041?
CVE-2026-73041 is a vulnerability with a CVSS score of 9.0 (CRITICAL). 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 ...
How severe is CVE-2026-73041?
CVE-2026-73041 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-73041?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.