CVE-2026-85583

Medium

Description

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductSiyuan

PublishedSep 4, 2026

First seenSep 4, 2026

Weakness typeCWE-59Improper link resolution

How to fix

Update

siyuan-note siyuan3.8.2 or later

Vendor advisories

github.com/siyuan-note/siyuan/security/advisories/GHSA-g7gf-v79m-jwrm

Affected products

Product	Affected versions	Fixed in
siyuan-note siyuan	v < 3.8.2	3.8.2

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