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HIGH

SiYuan before v3.8.2 Path Traversal via symlink in file API

Published Sep 4, 2026

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.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (1)

References (2)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner VulnCheck
Published Sep 4, 2026
Updated Sep 14, 2026
Reserved Sep 4, 2026
CISA Vulnrichment
Updated Sep 14, 2026
NVD
Status Deferred
Modified Sep 14, 2026
Red Hat
Severity n/a
Public date n/a