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 permissions or anonymous clients when publish authentication is disabled can read JSON files outside the attribute-view directory to disclose cross-scope database content.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (45.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Siyuan-Note Siyuan — versions 0, 3.7.3
Weakness classification (CWE)
References
- github.com/siyuan-note/siyuan/security/advisories/GHSA-7hm9-v7vf-7g4w (vendor-advisory)
- www.vulncheck.com/advisories/siyuan-before-path-traversal-via-unvalidated-avid (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.