What is CVE-2026-69086?

CVE-2026-69086 is a high-severity vulnerability in Siyuan-note Siyuan, classified under Path Traversal. CVSS score: 7.7/10. Published 2026-08-03.

How severe is CVE-2026-69086?

High severity. CVSS v3 base score is 7.7 out of 10.

Path Traversal in Siyuan-note Siyuan

CVE-2026-69086

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…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

Affected products

Siyuan-note Siyuan — versions 0, 3.7.3

Weakness classification (CWE)

CWE-22 — Path Traversal

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-69086?: CVE-2026-69086 is a high-severity vulnerability in Siyuan-note Siyuan, classified under Path Traversal. CVSS score: 7.7/10. Published 2026-08-03.
How severe is CVE-2026-69086?: High severity. CVSS v3 base score is 7.7 out of 10.