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.
- Score
- CVSS 4.0 7.1 High
- Status
- Deferred - disclosure@vulncheck.com
- Published
- 2026-09-04
- Last modified
- 2026-09-14
- Weaknesses
- CWE-59
Affected products
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-g7gf-v79m-jwrm
- https://www.vulncheck.com/advisories/siyuan-before-3.8.2-path-traversal-via-symlink-in-file-api
