CVE-2026-32749: SiYuan importSY/importZipMd: path traversal via multipart filename enables arbitrary file write

March 16, 2026

POST /api/import/importSY and POST /api/import/importZipMd write uploaded archives to a path derived from the multipart filename field without sanitization, allowing an admin to write files to arbitrary locations outside the temp directory — including system paths that enable RCE.

References

github.com/advisories/GHSA-qvvf-q994-x79v
github.com/siyuan-note/siyuan
github.com/siyuan-note/siyuan/security/advisories/GHSA-qvvf-q994-x79v
nvd.nist.gov/vuln/detail/CVE-2026-32749

Code Behaviors & Features

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