SiYuan - Remote Code Execution via Malicious Bazaar Package Metadata and README
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 displayName, description, or README fields, exploiting Electron's nodeIntegration setting to execute OS commands.
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-56395US | — | — | ||
Rejected reason: This record is a duplicate; use CVE-2026-56397 instead. | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56397.jsonADVISORY
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-v3mg-9v85-fcm7ADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-56397ADVISORY
- https://www.vulncheck.com/advisories/siyuan-remote-code-execution-via-malicious-bazaar-package-metadata-and-readme-2ADVISORY
scry
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