CVE-2026-85583
SiYuan versions before v3.8.2 contain a path traversal vulnerability in the reader-accessible file-read endpoint that follows symlinks when opening authorized asset paths. Attackers with reader role can request a logical asset under data/assets/ that is a symlink to a file outside the workspace and receive the target file bytes, bypassing workspace boundary restrictions.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.1
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- EPSS probability
- 0.48%
- CWE
- CWE-59
- Published
- 2026-09-04
- Last modified
- 2026-09-04
Affected products
- siyuan-note siyuan
- siyuan-note siyuan
Weakness type
Related vulnerabilities
- CVE-2026-87766 — Bubblewrap: bubblewrap: symlink traversal via /oldroot allows writing files outside sandbox during setup
- CVE-2026-78622 — Improper Link Resolution in Okta Verify for Windows Uninstaller Data Removal
- CVE-2026-81963 — Windows Update Stack Elevation of Privilege Vulnerability
- CVE-2026-69425 — Windows NTFS Tampering Vulnerability
- CVE-2026-69289 — Windows Setup Files Cleanup Elevation of Privilege Vulnerability
- CVE-2026-83999 — Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability
- CVE-2026-70563 — Windows Shell Spoofing Vulnerability
- CVE-2026-69771 — Windows Container Manager Service Security Feature Bypass Vulnerability