by Kastro
Paper/Archive/CVE-2026-32749

CVE-2026-32749

siyuan-note siyuan — SiYuan importSY/importZipMd: Path Traversal via multipart filename enables arbitrary file write

EPSS 0.4%public exploitCVSS 9.1
critical.is priorityof 100
45
CVSS 9.1 (NVD)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 38.4.384 × 207.7Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, 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. This can lead to aata destruction by overwriting workspace or application files, and for Docker containers running as root (common default), this grants full container compromise. This issue has been fixed in version 3.6.1.

Affected

ProductAffectedFixed inSource
siyuan< 3.6.1–CNA

Scores by source

NVD9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
GitHub_M (CNA)7.6CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: partial

References

refgithub.com/siyuan-note/siyuan/security/advisories/GHSA-qvvf-q994-x79vrefgithub.com/siyuan-note/siyuan/commit/5ee00907f0b0c4aca748ce21ef1977bb98178e14refgithub.com/siyuan-note/siyuan/releases/tag/v3.6.1