CVE-2026-69086

HIGH 7.7

SiYuan before v3.7.3 Path Traversal via unvalidated avID

CVSS Score

7.7

EPSS Score

0.0%

EPSS Percentile

0th

SiYuan versions before v3.7.3 fail to validate the avID parameter on all code branches in attribute-view read endpoints, allowing attackers to construct traversal paths that escape the storage directory. Authenticated users with RoleReader permissions or anonymous clients when publish authentication is disabled can read JSON files outside the attribute-view directory to disclose cross-scope database content.

CWE	CWE-22
Vendor	siyuan-note
Product	siyuan
Published	Aug 3, 2026

Stay Ahead of the Next One

Get instant alerts for siyuan-note siyuan

Be the first to know when new high vulnerabilities affecting siyuan-note siyuan are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

siyuan-note / siyuan

0 < 3.7.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/siyuan-note/siyuan/security/advisories/GHSA-7hm9-v7vf-7g4w vulncheck.com: https://www.vulncheck.com/advisories/siyuan-before-path-traversal-via-unvalidated-avid

Credits

🔍 Shirshakhtml